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Design, deployment and performance of 4G-LTE networks : a practical approach / / Ayman Elnashar, Mohamed A. El-saidny, Mahmoud Sherif
Design, deployment and performance of 4G-LTE networks : a practical approach / / Ayman Elnashar, Mohamed A. El-saidny, Mahmoud Sherif
Autore ElNashar Ayman
Pubbl/distr/stampa Chichester, West Sussex, United Kingdom : , : Wiley, , 2014
Descrizione fisica 1 online resource (610 p.)
Disciplina 621.3845/6
Soggetto topico Wireless communication systems
Mobile communication systems
ISBN 1-118-70343-X
1-118-70345-6
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Nota di contenuto -- Authors' Biographies xv -- Preface xvii -- Acknowledgments xix -- Abbreviations and Acronyms xxi -- 1 LTE Network Architecture and Protocols 1 / Ayman Elnashar and Mohamed A. El-saidny -- 1.1 Evolution of 3GPP Standards 2 -- 1.1.1 3GPP Release 99 3 -- 1.1.2 3GPP Release 4 3 -- 1.1.3 3GPP Release 5 3 -- 1.1.4 3GPP Release 6 4 -- 1.1.5 3GPP Release 7 4 -- 1.1.6 3GPP Release 8 5 -- 1.1.7 3GPP Release 9 and Beyond 5 -- 1.2 Radio Interface Techniques in 3GPP Systems 6 -- 1.2.1 Frequency Division Multiple Access (FDMA) 6 -- 1.2.2 Time Division Multiple Access (TDMA) 6 -- 1.2.3 Code Division Multiple Access (CDMA) 7 -- 1.2.4 Orthogonal Frequency Division Multiple Access (OFDMA) 7 -- 1.3 Radio Access Mode Operations 7 -- 1.3.1 Frequency Division Duplex (FDD) 8 -- 1.3.2 Time Division Duplex (TDD) 8 -- 1.4 Spectrum Allocation in UMTS and LTE 8 -- 1.5 LTE Network Architecture 10 -- 1.5.1 Evolved Packet System (EPS) 10 -- 1.5.2 Evolved Packet Core (EPC) 11 -- 1.5.3 Evolved Universal Terrestrial Radio Access Network (E-UTRAN) 13 -- 1.5.4 LTE User Equipment 13 -- 1.6 EPS Interfaces 14 -- 1.6.1 S1-MME Interface 14 -- 1.6.2 LTE-Uu Interface 15 -- 1.6.3 S1-U Interface 17 -- 1.6.4 S3 Interface (SGSN-MME) 18 -- 1.6.5 S4 (SGSN to SGW) 18 -- 1.6.6 S5/S8 Interface 19 -- 1.6.7 S6a (Diameter) 21 -- 1.6.8 S6b Interface (Diameter) 21 -- 1.6.9 S6d (Diameter) 22 -- 1.6.10 S9 Interface (H-PCRF-VPCRF) 23 -- 1.6.11 S10 Interface (MME-MME) 23 -- 1.6.12 S11 Interface (MME / SGW) 23 -- 1.6.13 S12 Interface 23 -- 1.6.14 S13 Interface 24 -- 1.6.15 SGs Interface 24 -- 1.6.16 SGi Interface 25 -- 1.6.17 Gx Interface 26 -- 1.6.18 Gy and Gz Interfaces 27 -- 1.6.19 DNS Interface 27 -- 1.6.20 Gn/Gp Interface 27 -- 1.6.21 SBc Interface 28 -- 1.6.22 Sv Interface 28 -- 1.7 EPS Protocols and Planes 29 -- 1.7.1 Access and Non-Access Stratum 29 -- 1.7.2 Control Plane 29 -- 1.7.3 User Plane 30 -- 1.8 EPS Procedures Overview 31 -- 1.8.1 EPS Registration and Attach Procedures 31 -- 1.8.2 EPS Quality of Service (QoS) 34.
1.8.3 EPS Security Basics 36 -- 1.8.4 EPS Idle and Active States 38 -- 1.8.5 EPS Network Topology for Mobility Procedures 39 -- 1.8.6 EPS Identifiers 44 -- References 44 -- 2 LTE Air Interface and Procedures 47 / Mohamed A. El-saidny -- 2.1 LTE Protocol Stack 47 -- 2.2 SDU and PDU 48 -- 2.3 LTE Radio Resource Control (RRC) 50 -- 2.4 LTE Packet Data Convergence Protocol Layer (PDCP) 52 -- 2.4.1 PDCP Architecture 53 -- 2.4.2 PDCP Data and Control SDUs 53 -- 2.4.3 PDCP Header Compression 54 -- 2.4.4 PDCP Ciphering 54 -- 2.4.5 PDCP In-Order Delivery 54 -- 2.4.6 PDCP in LTE versus HSPA 55 -- 2.5 LTE Radio Link Control (RLC) 55 -- 2.5.1 RLC Architecture 56 -- 2.5.2 RLC Modes 57 -- 2.5.3 Control and Data PDUs 60 -- 2.5.4 RLC in LTE versus HSPA 60 -- 2.6 LTE Medium Access Control (MAC) 61 -- 2.7 LTE Physical Layer (PHY) 61 -- 2.7.1 HSPA(+) Channel Overview 61 -- 2.7.2 General LTE Physical Channels 71 -- 2.7.3 LTE Downlink Physical Channels 71 -- 2.7.4 LTE Uplink Physical Channels 72 -- 2.8 Channel Mapping of Protocol Layers 73 -- 2.8.1 E-UTRAN Channel Mapping 73 -- 2.8.2 UTRAN Channel Mapping 76 -- 2.9 LTE Air Interface 76 -- 2.9.1 LTE Frame Structure 76 -- 2.9.2 LTE Frequency and Time Domains Structure 76 -- 2.9.3 OFDM Downlink Transmission Example 80 -- 2.9.4 Downlink Scheduling 81 -- 2.9.5 Uplink Scheduling 88 -- 2.9.6 LTE Hybrid Automatic Repeat Request (HARQ) 89 -- 2.10 Data Flow Illustration Across the Protocol Layers 90 -- 2.10.1 HSDPA Data Flow 90 -- 2.10.2 LTE Data Flow 91 -- 2.11 LTE Air Interface Procedures 92 -- 2.11.1 Overview 92 -- 2.11.2 Frequency Scan and Cell Identification 92 -- 2.11.3 Reception of Master and System Information Blocks (MIB and SIB) 93 -- 2.11.4 Random Access Procedures (RACH) 94 -- 2.11.5 Attach and Registration 95 -- 2.11.6 Downlink and Uplink Data Transfer 96 -- 2.11.7 Connected Mode Mobility 96 -- 2.11.8 Idle Mode Mobility and Paging 99 -- References 100 -- 3 Analysis and Optimization of LTE System Performance 103 / Mohamed A. El-saidny.
3.1 Deployment Optimization Processes 104 -- 3.1.1 Profiling Device and User Behavior in the Network 105 -- 3.1.2 Network Deployment Optimization Processes 107 -- 3.1.3 Measuring the Performance Targets 108 -- 3.1.4 LTE Troubleshooting Guidelines 119 -- 3.2 LTE Performance Analysis Based on Field Measurements 123 -- 3.2.1 Performance Evaluation of Downlink Throughput 127 -- 3.2.2 Performance Evaluation of Uplink Throughput 131 -- 3.3 LTE Case Studies and Troubleshooting 134 -- 3.3.1 Network Scheduler Implementations 135 -- 3.3.2 LTE Downlink Throughput Case Study and Troubleshooting 136 -- 3.3.3 LTE Uplink Throughput Case Studies and Troubleshooting 139 -- 3.3.4 LTE Handover Case Studies 146 -- 3.4 LTE Inter-RAT Cell Reselection 153 -- 3.4.1 Introduction to Cell Reselection 155 -- 3.4.2 LTE to WCDMA Inter-RAT Cell Reselection 155 -- 3.4.3 WCDMA to LTE Inter-RAT Cell Reselection 160 -- 3.5 Inter-RAT Cell Reselection Optimization Considerations 165 -- 3.5.1 SIB-19 Planning Strategy for UTRAN to E-UTRAN Cell Reselection 165 -- 3.5.2 SIB-6 Planning Strategy for E-UTRAN to UTRAN Cell Reselection 167 -- 3.5.3 Inter-RAT Case Studies from Field Test 168 -- 3.5.4 Parameter Setting Trade-off 174 -- 3.6 LTE to LTE Inter-frequency Cell Reselection 177 -- 3.6.1 LTE Inter-Frequency Cell Reselection Rules 177 -- 3.6.2 LTE Inter-Frequency Optimization Considerations 177 -- 3.7 LTE Inter-RAT and Inter-frequency Handover 180 -- 3.7.1 Inter-RAT and Inter-Frequency Handover Rules 187 -- 3.7.2 Inter-RAT and Inter-Frequency Handover Optimization -- Considerations 188 -- References 189 -- 4 Performance Analysis and Optimization of LTE Key Features: C-DRX, CSFB, and MIMO 191 / Mohamed A. El-saidny and Ayman Elnashar -- 4.1 LTE Connected Mode Discontinuous Reception (C-DRX) 192 -- 4.1.1 Concepts of DRX for Battery Saving 193 -- 4.1.2 Optimizing C-DRX Performance 195 -- 4.2 Circuit Switch Fallback (CSFB) for LTE Voice Calls 204 -- 4.2.1 CSFB to UTRAN Call Flow and Signaling 206 -- 4.2.2 CSFB to UTRAN Features and Roadmap 216.
4.2.3 Optimizing CSFB to UTRAN 231 -- 4.3 Multiple-Input, Multiple-Output (MIMO) Techniques 252 -- 4.3.1 Introduction to MIMO Concepts 252 -- 4.3.2 3GPP MIMO Evolution 256 -- 4.3.3 MIMO in LTE 258 -- 4.3.4 Closed-Loop MIMO (TM4) versus Open-Loop MIMO (TM3) 261 -- 4.3.5 MIMO Optimization Case Study 267 -- References 270 -- 5 Deployment Strategy of LTE Network 273 / Ayman Elnashar -- 5.1 Summary and Objective 273 -- 5.2 LTE Network Topology 273 -- 5.3 Core Network Domain 276 -- 5.3.1 Policy Charging and Charging (PCC) Entities 280 -- 5.3.2 Mobility Management Entity (MME) 283 -- 5.3.3 Serving Gateway (SGW) 286 -- 5.3.4 PDN Gateway (PGW) 287 -- 5.3.5 Interworking with PDN (DHCP) 289 -- 5.3.6 Usage of RADIUS on the Gi/SGi Interface 291 -- 5.3.7 IPv6 EPC Transition Strategy 293 -- 5.4 IPSec Gateway (IPSec GW) 294 -- 5.4.1 IPSec GW Deployment Strategy and Redundancy Options 299 -- 5.5 EPC Deployment and Evolution Strategy 300 -- 5.6 Access Network Domain 303 -- 5.6.1 E-UTRAN Overall Description 303 -- 5.6.2 Home eNB 305 -- 5.6.3 Relaying 307 -- 5.6.4 End-to-End Routing of the eNB 308 -- 5.6.5 Macro Sites Deployment Strategy 312 -- 5.6.6 IBS Deployment Strategy 317 -- 5.6.7 Passive Inter Modulation (PIM) 319 -- 5.7 Spectrum Options and Guard Band 327 -- 5.7.1 Guard Band Requirement 327 -- 5.7.2 Spectrum Options for LTE 327 -- 5.8 LTE Business Case and Financial Analysis 333 -- 5.8.1 Key Financial KPIs [31] 334 -- 5.9 Case Study: Inter-Operator Deployment Scenario 341 -- References 347 -- 6 Coverage and Capacity Planning of 4G Networks 349 / Ayman Elnashar -- 6.1 Summary and Objectives 349 -- 6.2 LTE Network Planning and Rollout Phases 349 -- 6.3 LTE System Foundation 351 -- 6.3.1 LTE FDD Frame Structure 351 -- 6.3.2 Slot Structure and Physical Resources 353 -- 6.3.3 Reference Signal Structure 356 -- 6.4 PCI and TA Planning 360 -- 6.4.1 PCI Planning Introduction 360 -- 6.4.2 PCI Planning Guidelines 361 -- 6.4.3 Tracking Areas (TA) Planning 362 -- 6.5 PRACH Planning 370 -- 6.5.1 Zadoff-Chu Sequence 371.
6.5.2 PRACH Planning Procedures 372 -- 6.5.3 Practical PRACH Planning Scenarios 373 -- 6.6 Coverage Planning 375 -- 6.6.1 RSSI, RSRP, RSRQ, and SINR 375 -- 6.6.2 The Channel Quality Indicator 378 -- 6.6.3 Modulation and Coding Scheme and Link Adaptation 381 -- 6.6.4 LTE Link Budget and Coverage Analysis 385 -- 6.6.5 Comparative Analysis with HSPA+ 401 -- 6.6.6 Link Budget for LTE Channels 405 -- 6.6.7 RF Propagation Models and Model Tuning 409 -- 6.7 LTE Throughput and Capacity Analysis 418 -- 6.7.1 Served Physical Layer Throughput Calculation 418 -- 6.7.2 Average Spectrum Efficiency Estimation 418 -- 6.7.3 Average Sector Capacity 419 -- 6.7.4 Capacity Dimensioning Process 419 -- 6.7.5 Capacity Dimensioning Exercises 423 -- 6.7.6 Calculation of VoIP Capacity in LTE 426 -- 6.7.7 LTE Channels Planning 431 -- 6.8 Case Study: LTE FDD versus LTE TDD 437 -- References 443 -- 7 Voice Evolution in 4G Networks 445 / Mahmoud R. Sherif -- 7.1 Voice over IP Basics 445 -- 7.1.1 VoIP Protocol Stack 445 -- 7.1.2 VoIP Signaling (Call Setup) 449 -- 7.1.3 VoIP Bearer Traffic (Encoded Speech) 449 -- 7.2 Voice Options for LTE 451 -- 7.2.1 SRVCC and CSFB 451 -- 7.2.2 Circuit Switched Fallback (CSFB) 452 -- 7.3 IMS Single Radio Voice Call Continuity (SRVCC) 455 -- 7.3.1 IMS Overview 456 -- 7.3.2 VoLTE Call Flow and Interaction with IMS 460 -- 7.3.3 Voice Call Continuity Overview 469 -- 7.3.4 SRVCC from VoLTE to 3G/2G 471 -- 7.3.5 Enhanced SRVCC (eSRVCC) 480 -- 7.4 Key VoLTE Features 482 -- 7.4.1 End-to-End QoS Support 482 -- 7.4.2 Semi-Persistent Scheduler 486 -- 7.4.3 TTI Bundling 488 -- 7.4.4 Connected Mode DRX 491 -- 7.4.5 Robust Header Compression (ROHC) 492 -- 7.4.6 VoLTE Vocoders and De-Jitter Buffer 497 -- 7.5 Deployment Considerations for VoLTE 503 -- References 505 -- 8 4G Advanced Features and Roadmap Evolutions from LTE to LTE-A 507 / Ayman Elnashar and Mohamed A. El-saidny -- 8.1 Performance Comparison between LTE's UE Category 3 and 4 509 -- 8.1.1 Trial Overview 512 -- 8.1.2 Downlink Performance Comparison in Near and Far Cell Conditions 513.
8.1.3 Downlink Performance Comparison in Mobility Conditions 515 -- 8.2 Carrier Aggregation 516 -- 8.2.1 Basic Definitions of LTE Carrier Aggregation 518 -- 8.2.2 Band Types of LTE Carrier Aggregation 519 -- 8.2.3 Impact of LTE Carrier Aggregation on Protocol Layers 520 -- 8.3 Enhanced MIMO 520 -- 8.3.1 Enhanced Downlink MIMO 522 -- 8.3.2 Uplink MIMO 523 -- 8.4 Heterogeneous Network (HetNet) and Small Cells 523 -- 8.4.1 Wireless Backhauling Applicable to HetNet Deployment 524 -- 8.4.2 Key Features for HetNet Deployment 528 -- 8.5 Inter-Cell Interference Coordination (ICIC) 529 -- 8.6 Coordinated Multi-Point Transmission and Reception 531 -- 8.6.1 DL CoMP Categories 531 -- 8.6.2 UL CoMP Categories 533 -- 8.6.3 Performance Evaluation of CoMP 533 -- 8.7 Self-Organizing, Self-Optimizing Networks (SON) 535 -- 8.7.1 Automatic Neighbor Relation (ANR) 536 -- 8.7.2 Mobility Robust Optimization (MRO) 537 -- 8.7.3 Mobility Load Balancing (MLB) 539 -- 8.7.4 SON Enhancements in LTE-A 540 -- 8.8 LTE-A Relays and Home eNodeBs (HeNB) 540 -- 8.9 UE Positioning and Location-Based Services in LTE 541 -- 8.9.1 LBS Overview 541 -- 8.9.2 LTE Positioning Architecture 543 -- References 544 -- Index 547.
Record Nr. UNINA-9910140272103321
ElNashar Ayman  
Chichester, West Sussex, United Kingdom : , : Wiley, , 2014
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui
Design, deployment and performance of 4G-LTE networks : a practical approach / / Ayman Elnashar, Mohamed A. El-saidny, Mahmoud Sherif
Design, deployment and performance of 4G-LTE networks : a practical approach / / Ayman Elnashar, Mohamed A. El-saidny, Mahmoud Sherif
Autore ElNashar Ayman
Pubbl/distr/stampa Chichester, West Sussex, United Kingdom : , : Wiley, , 2014
Descrizione fisica 1 online resource (610 p.)
Disciplina 621.3845/6
Soggetto topico Wireless communication systems
Mobile communication systems
ISBN 1-118-70343-X
1-118-70345-6
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Nota di contenuto -- Authors' Biographies xv -- Preface xvii -- Acknowledgments xix -- Abbreviations and Acronyms xxi -- 1 LTE Network Architecture and Protocols 1 / Ayman Elnashar and Mohamed A. El-saidny -- 1.1 Evolution of 3GPP Standards 2 -- 1.1.1 3GPP Release 99 3 -- 1.1.2 3GPP Release 4 3 -- 1.1.3 3GPP Release 5 3 -- 1.1.4 3GPP Release 6 4 -- 1.1.5 3GPP Release 7 4 -- 1.1.6 3GPP Release 8 5 -- 1.1.7 3GPP Release 9 and Beyond 5 -- 1.2 Radio Interface Techniques in 3GPP Systems 6 -- 1.2.1 Frequency Division Multiple Access (FDMA) 6 -- 1.2.2 Time Division Multiple Access (TDMA) 6 -- 1.2.3 Code Division Multiple Access (CDMA) 7 -- 1.2.4 Orthogonal Frequency Division Multiple Access (OFDMA) 7 -- 1.3 Radio Access Mode Operations 7 -- 1.3.1 Frequency Division Duplex (FDD) 8 -- 1.3.2 Time Division Duplex (TDD) 8 -- 1.4 Spectrum Allocation in UMTS and LTE 8 -- 1.5 LTE Network Architecture 10 -- 1.5.1 Evolved Packet System (EPS) 10 -- 1.5.2 Evolved Packet Core (EPC) 11 -- 1.5.3 Evolved Universal Terrestrial Radio Access Network (E-UTRAN) 13 -- 1.5.4 LTE User Equipment 13 -- 1.6 EPS Interfaces 14 -- 1.6.1 S1-MME Interface 14 -- 1.6.2 LTE-Uu Interface 15 -- 1.6.3 S1-U Interface 17 -- 1.6.4 S3 Interface (SGSN-MME) 18 -- 1.6.5 S4 (SGSN to SGW) 18 -- 1.6.6 S5/S8 Interface 19 -- 1.6.7 S6a (Diameter) 21 -- 1.6.8 S6b Interface (Diameter) 21 -- 1.6.9 S6d (Diameter) 22 -- 1.6.10 S9 Interface (H-PCRF-VPCRF) 23 -- 1.6.11 S10 Interface (MME-MME) 23 -- 1.6.12 S11 Interface (MME / SGW) 23 -- 1.6.13 S12 Interface 23 -- 1.6.14 S13 Interface 24 -- 1.6.15 SGs Interface 24 -- 1.6.16 SGi Interface 25 -- 1.6.17 Gx Interface 26 -- 1.6.18 Gy and Gz Interfaces 27 -- 1.6.19 DNS Interface 27 -- 1.6.20 Gn/Gp Interface 27 -- 1.6.21 SBc Interface 28 -- 1.6.22 Sv Interface 28 -- 1.7 EPS Protocols and Planes 29 -- 1.7.1 Access and Non-Access Stratum 29 -- 1.7.2 Control Plane 29 -- 1.7.3 User Plane 30 -- 1.8 EPS Procedures Overview 31 -- 1.8.1 EPS Registration and Attach Procedures 31 -- 1.8.2 EPS Quality of Service (QoS) 34.
1.8.3 EPS Security Basics 36 -- 1.8.4 EPS Idle and Active States 38 -- 1.8.5 EPS Network Topology for Mobility Procedures 39 -- 1.8.6 EPS Identifiers 44 -- References 44 -- 2 LTE Air Interface and Procedures 47 / Mohamed A. El-saidny -- 2.1 LTE Protocol Stack 47 -- 2.2 SDU and PDU 48 -- 2.3 LTE Radio Resource Control (RRC) 50 -- 2.4 LTE Packet Data Convergence Protocol Layer (PDCP) 52 -- 2.4.1 PDCP Architecture 53 -- 2.4.2 PDCP Data and Control SDUs 53 -- 2.4.3 PDCP Header Compression 54 -- 2.4.4 PDCP Ciphering 54 -- 2.4.5 PDCP In-Order Delivery 54 -- 2.4.6 PDCP in LTE versus HSPA 55 -- 2.5 LTE Radio Link Control (RLC) 55 -- 2.5.1 RLC Architecture 56 -- 2.5.2 RLC Modes 57 -- 2.5.3 Control and Data PDUs 60 -- 2.5.4 RLC in LTE versus HSPA 60 -- 2.6 LTE Medium Access Control (MAC) 61 -- 2.7 LTE Physical Layer (PHY) 61 -- 2.7.1 HSPA(+) Channel Overview 61 -- 2.7.2 General LTE Physical Channels 71 -- 2.7.3 LTE Downlink Physical Channels 71 -- 2.7.4 LTE Uplink Physical Channels 72 -- 2.8 Channel Mapping of Protocol Layers 73 -- 2.8.1 E-UTRAN Channel Mapping 73 -- 2.8.2 UTRAN Channel Mapping 76 -- 2.9 LTE Air Interface 76 -- 2.9.1 LTE Frame Structure 76 -- 2.9.2 LTE Frequency and Time Domains Structure 76 -- 2.9.3 OFDM Downlink Transmission Example 80 -- 2.9.4 Downlink Scheduling 81 -- 2.9.5 Uplink Scheduling 88 -- 2.9.6 LTE Hybrid Automatic Repeat Request (HARQ) 89 -- 2.10 Data Flow Illustration Across the Protocol Layers 90 -- 2.10.1 HSDPA Data Flow 90 -- 2.10.2 LTE Data Flow 91 -- 2.11 LTE Air Interface Procedures 92 -- 2.11.1 Overview 92 -- 2.11.2 Frequency Scan and Cell Identification 92 -- 2.11.3 Reception of Master and System Information Blocks (MIB and SIB) 93 -- 2.11.4 Random Access Procedures (RACH) 94 -- 2.11.5 Attach and Registration 95 -- 2.11.6 Downlink and Uplink Data Transfer 96 -- 2.11.7 Connected Mode Mobility 96 -- 2.11.8 Idle Mode Mobility and Paging 99 -- References 100 -- 3 Analysis and Optimization of LTE System Performance 103 / Mohamed A. El-saidny.
3.1 Deployment Optimization Processes 104 -- 3.1.1 Profiling Device and User Behavior in the Network 105 -- 3.1.2 Network Deployment Optimization Processes 107 -- 3.1.3 Measuring the Performance Targets 108 -- 3.1.4 LTE Troubleshooting Guidelines 119 -- 3.2 LTE Performance Analysis Based on Field Measurements 123 -- 3.2.1 Performance Evaluation of Downlink Throughput 127 -- 3.2.2 Performance Evaluation of Uplink Throughput 131 -- 3.3 LTE Case Studies and Troubleshooting 134 -- 3.3.1 Network Scheduler Implementations 135 -- 3.3.2 LTE Downlink Throughput Case Study and Troubleshooting 136 -- 3.3.3 LTE Uplink Throughput Case Studies and Troubleshooting 139 -- 3.3.4 LTE Handover Case Studies 146 -- 3.4 LTE Inter-RAT Cell Reselection 153 -- 3.4.1 Introduction to Cell Reselection 155 -- 3.4.2 LTE to WCDMA Inter-RAT Cell Reselection 155 -- 3.4.3 WCDMA to LTE Inter-RAT Cell Reselection 160 -- 3.5 Inter-RAT Cell Reselection Optimization Considerations 165 -- 3.5.1 SIB-19 Planning Strategy for UTRAN to E-UTRAN Cell Reselection 165 -- 3.5.2 SIB-6 Planning Strategy for E-UTRAN to UTRAN Cell Reselection 167 -- 3.5.3 Inter-RAT Case Studies from Field Test 168 -- 3.5.4 Parameter Setting Trade-off 174 -- 3.6 LTE to LTE Inter-frequency Cell Reselection 177 -- 3.6.1 LTE Inter-Frequency Cell Reselection Rules 177 -- 3.6.2 LTE Inter-Frequency Optimization Considerations 177 -- 3.7 LTE Inter-RAT and Inter-frequency Handover 180 -- 3.7.1 Inter-RAT and Inter-Frequency Handover Rules 187 -- 3.7.2 Inter-RAT and Inter-Frequency Handover Optimization -- Considerations 188 -- References 189 -- 4 Performance Analysis and Optimization of LTE Key Features: C-DRX, CSFB, and MIMO 191 / Mohamed A. El-saidny and Ayman Elnashar -- 4.1 LTE Connected Mode Discontinuous Reception (C-DRX) 192 -- 4.1.1 Concepts of DRX for Battery Saving 193 -- 4.1.2 Optimizing C-DRX Performance 195 -- 4.2 Circuit Switch Fallback (CSFB) for LTE Voice Calls 204 -- 4.2.1 CSFB to UTRAN Call Flow and Signaling 206 -- 4.2.2 CSFB to UTRAN Features and Roadmap 216.
4.2.3 Optimizing CSFB to UTRAN 231 -- 4.3 Multiple-Input, Multiple-Output (MIMO) Techniques 252 -- 4.3.1 Introduction to MIMO Concepts 252 -- 4.3.2 3GPP MIMO Evolution 256 -- 4.3.3 MIMO in LTE 258 -- 4.3.4 Closed-Loop MIMO (TM4) versus Open-Loop MIMO (TM3) 261 -- 4.3.5 MIMO Optimization Case Study 267 -- References 270 -- 5 Deployment Strategy of LTE Network 273 / Ayman Elnashar -- 5.1 Summary and Objective 273 -- 5.2 LTE Network Topology 273 -- 5.3 Core Network Domain 276 -- 5.3.1 Policy Charging and Charging (PCC) Entities 280 -- 5.3.2 Mobility Management Entity (MME) 283 -- 5.3.3 Serving Gateway (SGW) 286 -- 5.3.4 PDN Gateway (PGW) 287 -- 5.3.5 Interworking with PDN (DHCP) 289 -- 5.3.6 Usage of RADIUS on the Gi/SGi Interface 291 -- 5.3.7 IPv6 EPC Transition Strategy 293 -- 5.4 IPSec Gateway (IPSec GW) 294 -- 5.4.1 IPSec GW Deployment Strategy and Redundancy Options 299 -- 5.5 EPC Deployment and Evolution Strategy 300 -- 5.6 Access Network Domain 303 -- 5.6.1 E-UTRAN Overall Description 303 -- 5.6.2 Home eNB 305 -- 5.6.3 Relaying 307 -- 5.6.4 End-to-End Routing of the eNB 308 -- 5.6.5 Macro Sites Deployment Strategy 312 -- 5.6.6 IBS Deployment Strategy 317 -- 5.6.7 Passive Inter Modulation (PIM) 319 -- 5.7 Spectrum Options and Guard Band 327 -- 5.7.1 Guard Band Requirement 327 -- 5.7.2 Spectrum Options for LTE 327 -- 5.8 LTE Business Case and Financial Analysis 333 -- 5.8.1 Key Financial KPIs [31] 334 -- 5.9 Case Study: Inter-Operator Deployment Scenario 341 -- References 347 -- 6 Coverage and Capacity Planning of 4G Networks 349 / Ayman Elnashar -- 6.1 Summary and Objectives 349 -- 6.2 LTE Network Planning and Rollout Phases 349 -- 6.3 LTE System Foundation 351 -- 6.3.1 LTE FDD Frame Structure 351 -- 6.3.2 Slot Structure and Physical Resources 353 -- 6.3.3 Reference Signal Structure 356 -- 6.4 PCI and TA Planning 360 -- 6.4.1 PCI Planning Introduction 360 -- 6.4.2 PCI Planning Guidelines 361 -- 6.4.3 Tracking Areas (TA) Planning 362 -- 6.5 PRACH Planning 370 -- 6.5.1 Zadoff-Chu Sequence 371.
6.5.2 PRACH Planning Procedures 372 -- 6.5.3 Practical PRACH Planning Scenarios 373 -- 6.6 Coverage Planning 375 -- 6.6.1 RSSI, RSRP, RSRQ, and SINR 375 -- 6.6.2 The Channel Quality Indicator 378 -- 6.6.3 Modulation and Coding Scheme and Link Adaptation 381 -- 6.6.4 LTE Link Budget and Coverage Analysis 385 -- 6.6.5 Comparative Analysis with HSPA+ 401 -- 6.6.6 Link Budget for LTE Channels 405 -- 6.6.7 RF Propagation Models and Model Tuning 409 -- 6.7 LTE Throughput and Capacity Analysis 418 -- 6.7.1 Served Physical Layer Throughput Calculation 418 -- 6.7.2 Average Spectrum Efficiency Estimation 418 -- 6.7.3 Average Sector Capacity 419 -- 6.7.4 Capacity Dimensioning Process 419 -- 6.7.5 Capacity Dimensioning Exercises 423 -- 6.7.6 Calculation of VoIP Capacity in LTE 426 -- 6.7.7 LTE Channels Planning 431 -- 6.8 Case Study: LTE FDD versus LTE TDD 437 -- References 443 -- 7 Voice Evolution in 4G Networks 445 / Mahmoud R. Sherif -- 7.1 Voice over IP Basics 445 -- 7.1.1 VoIP Protocol Stack 445 -- 7.1.2 VoIP Signaling (Call Setup) 449 -- 7.1.3 VoIP Bearer Traffic (Encoded Speech) 449 -- 7.2 Voice Options for LTE 451 -- 7.2.1 SRVCC and CSFB 451 -- 7.2.2 Circuit Switched Fallback (CSFB) 452 -- 7.3 IMS Single Radio Voice Call Continuity (SRVCC) 455 -- 7.3.1 IMS Overview 456 -- 7.3.2 VoLTE Call Flow and Interaction with IMS 460 -- 7.3.3 Voice Call Continuity Overview 469 -- 7.3.4 SRVCC from VoLTE to 3G/2G 471 -- 7.3.5 Enhanced SRVCC (eSRVCC) 480 -- 7.4 Key VoLTE Features 482 -- 7.4.1 End-to-End QoS Support 482 -- 7.4.2 Semi-Persistent Scheduler 486 -- 7.4.3 TTI Bundling 488 -- 7.4.4 Connected Mode DRX 491 -- 7.4.5 Robust Header Compression (ROHC) 492 -- 7.4.6 VoLTE Vocoders and De-Jitter Buffer 497 -- 7.5 Deployment Considerations for VoLTE 503 -- References 505 -- 8 4G Advanced Features and Roadmap Evolutions from LTE to LTE-A 507 / Ayman Elnashar and Mohamed A. El-saidny -- 8.1 Performance Comparison between LTE's UE Category 3 and 4 509 -- 8.1.1 Trial Overview 512 -- 8.1.2 Downlink Performance Comparison in Near and Far Cell Conditions 513.
8.1.3 Downlink Performance Comparison in Mobility Conditions 515 -- 8.2 Carrier Aggregation 516 -- 8.2.1 Basic Definitions of LTE Carrier Aggregation 518 -- 8.2.2 Band Types of LTE Carrier Aggregation 519 -- 8.2.3 Impact of LTE Carrier Aggregation on Protocol Layers 520 -- 8.3 Enhanced MIMO 520 -- 8.3.1 Enhanced Downlink MIMO 522 -- 8.3.2 Uplink MIMO 523 -- 8.4 Heterogeneous Network (HetNet) and Small Cells 523 -- 8.4.1 Wireless Backhauling Applicable to HetNet Deployment 524 -- 8.4.2 Key Features for HetNet Deployment 528 -- 8.5 Inter-Cell Interference Coordination (ICIC) 529 -- 8.6 Coordinated Multi-Point Transmission and Reception 531 -- 8.6.1 DL CoMP Categories 531 -- 8.6.2 UL CoMP Categories 533 -- 8.6.3 Performance Evaluation of CoMP 533 -- 8.7 Self-Organizing, Self-Optimizing Networks (SON) 535 -- 8.7.1 Automatic Neighbor Relation (ANR) 536 -- 8.7.2 Mobility Robust Optimization (MRO) 537 -- 8.7.3 Mobility Load Balancing (MLB) 539 -- 8.7.4 SON Enhancements in LTE-A 540 -- 8.8 LTE-A Relays and Home eNodeBs (HeNB) 540 -- 8.9 UE Positioning and Location-Based Services in LTE 541 -- 8.9.1 LBS Overview 541 -- 8.9.2 LTE Positioning Architecture 543 -- References 544 -- Index 547.
Record Nr. UNINA-9910819756703321
ElNashar Ayman  
Chichester, West Sussex, United Kingdom : , : Wiley, , 2014
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui
Practical guide to LTE-A, VoLTE and IoT / / by Ayman ElNashar, Emirates Integrated Telecommunications Company (EITC)
Practical guide to LTE-A, VoLTE and IoT / / by Ayman ElNashar, Emirates Integrated Telecommunications Company (EITC)
Autore ElNashar Ayman
Edizione [First edition.]
Pubbl/distr/stampa Hoboken, New Jersey, USA : , : Wiley, , [2018]
Descrizione fisica 1 online resource (483 pages)
Disciplina 621.3845/6
Soggetto topico Wireless communication systems
Mobile communication systems
Internet of things
ISBN 1-119-06343-4
1-119-06341-8
1-119-06340-X
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Nota di contenuto About the Authors xvii -- Preface xix -- Acknowledgments xxi -- 1 LTE and LTE-A Overview 1 -- 1.1 Introduction 1 -- 1.2 Link Spectrum Efficiency 3 -- 1.3 LTE-Advanced and Beyond 4 -- 1.4 Evolved Packet System (EPS) Overview 9 -- 1.5 Network Architecture Evolution 11 -- 1.6 LTE UE Description 14 -- 1.7 EPS Bearer Procedures 15 -- 1.8 Access and Non-access Stratum Procedures 20 -- 1.9 LTE Air Interface 26 -- 1.10 OFDM Signal Generation 32 -- 1.11 LTE Channels and Procedures 34 -- 1.12 Uplink Physical Channels 43 -- 1.13 Physical Layer Procedures 45 -- 1.14 RRC Layer and Mobility Procedures 51 -- 1.15 LTE Idle Mode Mobility Procedures 60 -- 1.16 LTE Connected Mode Mobility Procedures 68 -- 1.17 Interworking with Other 3GPP Radio Access 76 -- References 86 -- 2 Introduction to the IP Multimedia Subsystem (IMS) 87 -- 2.1 Introduction 87 -- 2.2 IMS Network Description 91 -- 2.3 IMS Identities and Subscription 131 -- 2.4 IMS Architecture and Interfaces 134 -- 2.5 MMTel (Multimedia Telephony) Services 136 -- 2.6 Service Centralization and Continuity AS (SCC AS) 141 -- 2.7 Operator X IMS-VoLTE Architecture 145 -- 3 VoLTE/CSFB Call Setup Delay and Handover Analysis 158 -- 3.1 Overview 158 -- 3.2 Introduction 158 -- 3.3 CSFB Call Flow and Relevant KPIs 160 -- 3.4 VoLTE Call Flow and Relevant KPIs 162 -- 3.5 VoLTE Handover and Data Interruption Time 166 -- 3.6 Single Radio Voice Call Continuity (SRVCC) 169 -- 3.7 Performance Analysis 171 -- 3.8 Latency Reduction During Handover 182 -- 3.9 Practical Use Cases and Recommendations 187 -- 3.10 Conclusions 190 -- References 195 -- 4 Comprehensive Performance Evaluation of VoLTE 197 -- 4.1 Overview 197 -- 4.2 Introduction 197 -- 4.3 VoLTE Principles 198 -- 4.4 Main VoLTE Features 200 -- 4.5 Testing Environment and Main VoLTE KPIs 203 -- 4.6 VoLTE Performance Evaluation 204 -- 4.7 EVS Coding and Voice Evolution 214 -- 4.8 TTI Bundling Performance Evaluation 219 -- 4.9 BLER Impact on Voice Quality 220 -- 4.10 Scheduler Performance 220.
4.11 VoLTE KPI Evaluation 221 -- 4.12 Use Cases and Recommendations 223 -- 4.13 Conclusions 226 -- References 228 -- 5 Evaluation of LTE-Advanced Features 230 -- 5.1 Introduction to LTE-Advanced Features 230 -- 5.2 Carrier Aggregation in LTE-A and LTE-A Pro 231 -- 5.3 Higher-order Modulation (HOM) for Uplink and Downlink 242 -- 5.4 LTE-A Feature Dependencies 247 -- 5.5 Other Enhancements Towards Advanced LTE Deployments 252 -- References 263 -- 6 LTE Network Capacity Analysis 264 -- 6.1 Overview 264 -- 6.2 Introduction 264 -- 6.3 Users and Traffic Utilization 266 -- 6.4 Downlink Analysis 270 -- 6.5 DL KPI Analysis 274 -- 6.6 UL KPI Analysis 289 -- 6.7 Data Connection Performance 302 -- 6.8 Link Reliability Analysis 305 -- 6.9 Main KPI Comparison for Different Operators 307 -- References 309 -- 7 IoT Evolution Towards a Super-connected World 310 -- 7.1 Overview 310 -- 7.2 Introduction to the IoT 310 -- 7.3 IoT Standards 312 -- 7.4 IoT Platform 314 -- 7.5 IoT Gateways, Devices, and “Things” Management 318 -- 7.6 Edge and Fog Computing 319 -- 7.7 IoT Sensors 322 -- 7.8 IoT Protocols 323 -- 7.9 IoT Networks 327 -- 7.10 3GPP Standards for IoT 337 -- 7.11 3GPP NB-IoT 341 -- 7.12 NB-IoT DL Specifications 343 -- 7.13 NB-IoT UL Specifications 352 -- 7.14 Release 13 Machine-type Communications Overview 358 -- 7.15 Link Budget Analysis 359 -- 7.16 NB-IoT Network Topology 364 -- 7.17 Architecture Enhancement for CIoT 367 -- 7.18 Sample IoT Use Cases 374 -- References 380 -- 8 5G Evolution Towards a Super-connected World 382 -- 8.1 Overview 382 -- 8.2 Introduction 382 -- 8.3 5G New Radio (NR) and Air Interface 385 -- 8.4 What is Next for LTE-A Pro Evolution? 386 -- 8.5 5G Spectrum View 387 -- 8.6 5G Design Considerations 390 -- 8.7 5G Deployment Scenarios for Mobile Applications 400 -- 8.8 Air-to-Ground and Satellite Scenarios 401 -- 8.9 5G Evaluation KPIs 405 -- 8.10 Next-generation Radio Access Requirements 407 -- 8.11 5G NextGen Core Network Architecture 416.
8.12 5G Waveform and Multiple Access Design 423 -- 8.13 NFV and SDN 433 -- 8.14 Conclusion 440 -- References 441 -- Index 445.
Record Nr. UNINA-9910555271303321
ElNashar Ayman  
Hoboken, New Jersey, USA : , : Wiley, , [2018]
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui
Practical guide to LTE-A, VoLTE and IoT / / by Ayman ElNashar, Emirates Integrated Telecommunications Company (EITC)
Practical guide to LTE-A, VoLTE and IoT / / by Ayman ElNashar, Emirates Integrated Telecommunications Company (EITC)
Autore ElNashar Ayman
Edizione [First edition.]
Pubbl/distr/stampa Hoboken, New Jersey, USA : , : Wiley, , [2018]
Descrizione fisica 1 online resource (483 pages)
Disciplina 621.3845/6
Soggetto topico Wireless communication systems
Mobile communication systems
Internet of things
ISBN 1-119-06343-4
1-119-06341-8
1-119-06340-X
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Nota di contenuto About the Authors xvii -- Preface xix -- Acknowledgments xxi -- 1 LTE and LTE-A Overview 1 -- 1.1 Introduction 1 -- 1.2 Link Spectrum Efficiency 3 -- 1.3 LTE-Advanced and Beyond 4 -- 1.4 Evolved Packet System (EPS) Overview 9 -- 1.5 Network Architecture Evolution 11 -- 1.6 LTE UE Description 14 -- 1.7 EPS Bearer Procedures 15 -- 1.8 Access and Non-access Stratum Procedures 20 -- 1.9 LTE Air Interface 26 -- 1.10 OFDM Signal Generation 32 -- 1.11 LTE Channels and Procedures 34 -- 1.12 Uplink Physical Channels 43 -- 1.13 Physical Layer Procedures 45 -- 1.14 RRC Layer and Mobility Procedures 51 -- 1.15 LTE Idle Mode Mobility Procedures 60 -- 1.16 LTE Connected Mode Mobility Procedures 68 -- 1.17 Interworking with Other 3GPP Radio Access 76 -- References 86 -- 2 Introduction to the IP Multimedia Subsystem (IMS) 87 -- 2.1 Introduction 87 -- 2.2 IMS Network Description 91 -- 2.3 IMS Identities and Subscription 131 -- 2.4 IMS Architecture and Interfaces 134 -- 2.5 MMTel (Multimedia Telephony) Services 136 -- 2.6 Service Centralization and Continuity AS (SCC AS) 141 -- 2.7 Operator X IMS-VoLTE Architecture 145 -- 3 VoLTE/CSFB Call Setup Delay and Handover Analysis 158 -- 3.1 Overview 158 -- 3.2 Introduction 158 -- 3.3 CSFB Call Flow and Relevant KPIs 160 -- 3.4 VoLTE Call Flow and Relevant KPIs 162 -- 3.5 VoLTE Handover and Data Interruption Time 166 -- 3.6 Single Radio Voice Call Continuity (SRVCC) 169 -- 3.7 Performance Analysis 171 -- 3.8 Latency Reduction During Handover 182 -- 3.9 Practical Use Cases and Recommendations 187 -- 3.10 Conclusions 190 -- References 195 -- 4 Comprehensive Performance Evaluation of VoLTE 197 -- 4.1 Overview 197 -- 4.2 Introduction 197 -- 4.3 VoLTE Principles 198 -- 4.4 Main VoLTE Features 200 -- 4.5 Testing Environment and Main VoLTE KPIs 203 -- 4.6 VoLTE Performance Evaluation 204 -- 4.7 EVS Coding and Voice Evolution 214 -- 4.8 TTI Bundling Performance Evaluation 219 -- 4.9 BLER Impact on Voice Quality 220 -- 4.10 Scheduler Performance 220.
4.11 VoLTE KPI Evaluation 221 -- 4.12 Use Cases and Recommendations 223 -- 4.13 Conclusions 226 -- References 228 -- 5 Evaluation of LTE-Advanced Features 230 -- 5.1 Introduction to LTE-Advanced Features 230 -- 5.2 Carrier Aggregation in LTE-A and LTE-A Pro 231 -- 5.3 Higher-order Modulation (HOM) for Uplink and Downlink 242 -- 5.4 LTE-A Feature Dependencies 247 -- 5.5 Other Enhancements Towards Advanced LTE Deployments 252 -- References 263 -- 6 LTE Network Capacity Analysis 264 -- 6.1 Overview 264 -- 6.2 Introduction 264 -- 6.3 Users and Traffic Utilization 266 -- 6.4 Downlink Analysis 270 -- 6.5 DL KPI Analysis 274 -- 6.6 UL KPI Analysis 289 -- 6.7 Data Connection Performance 302 -- 6.8 Link Reliability Analysis 305 -- 6.9 Main KPI Comparison for Different Operators 307 -- References 309 -- 7 IoT Evolution Towards a Super-connected World 310 -- 7.1 Overview 310 -- 7.2 Introduction to the IoT 310 -- 7.3 IoT Standards 312 -- 7.4 IoT Platform 314 -- 7.5 IoT Gateways, Devices, and “Things” Management 318 -- 7.6 Edge and Fog Computing 319 -- 7.7 IoT Sensors 322 -- 7.8 IoT Protocols 323 -- 7.9 IoT Networks 327 -- 7.10 3GPP Standards for IoT 337 -- 7.11 3GPP NB-IoT 341 -- 7.12 NB-IoT DL Specifications 343 -- 7.13 NB-IoT UL Specifications 352 -- 7.14 Release 13 Machine-type Communications Overview 358 -- 7.15 Link Budget Analysis 359 -- 7.16 NB-IoT Network Topology 364 -- 7.17 Architecture Enhancement for CIoT 367 -- 7.18 Sample IoT Use Cases 374 -- References 380 -- 8 5G Evolution Towards a Super-connected World 382 -- 8.1 Overview 382 -- 8.2 Introduction 382 -- 8.3 5G New Radio (NR) and Air Interface 385 -- 8.4 What is Next for LTE-A Pro Evolution? 386 -- 8.5 5G Spectrum View 387 -- 8.6 5G Design Considerations 390 -- 8.7 5G Deployment Scenarios for Mobile Applications 400 -- 8.8 Air-to-Ground and Satellite Scenarios 401 -- 8.9 5G Evaluation KPIs 405 -- 8.10 Next-generation Radio Access Requirements 407 -- 8.11 5G NextGen Core Network Architecture 416.
8.12 5G Waveform and Multiple Access Design 423 -- 8.13 NFV and SDN 433 -- 8.14 Conclusion 440 -- References 441 -- Index 445.
Record Nr. UNINA-9910829992003321
ElNashar Ayman  
Hoboken, New Jersey, USA : , : Wiley, , [2018]
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui
Simplified robust adaptive detection and beamforming for wireless communications / / by Ayman ElNashar
Simplified robust adaptive detection and beamforming for wireless communications / / by Ayman ElNashar
Autore ElNashar Ayman
Edizione [First edition.]
Pubbl/distr/stampa Hoboken, NJ : , : John Wiley & Sons, , [2018]
Descrizione fisica 1 online resource (398 pages)
Disciplina 621.382/4
Soggetto topico Adaptive signal processing
Beamforming
Wireless communication systems
ISBN 1-118-93823-2
1-118-93822-4
1-118-93821-6
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Nota di contenuto Wireless systems models -- Adaptive detection algorithms -- Robust RLS adaptive algorithms -- Quadratically constrained robust detection -- Robust constant modulus algorithms -- Robust adaptive beamforming -- Minimum ber adaptive detection and beamforming.
Record Nr. UNINA-9910554876303321
ElNashar Ayman  
Hoboken, NJ : , : John Wiley & Sons, , [2018]
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui
Simplified robust adaptive detection and beamforming for wireless communications / / by Ayman ElNashar
Simplified robust adaptive detection and beamforming for wireless communications / / by Ayman ElNashar
Autore ElNashar Ayman
Edizione [First edition.]
Pubbl/distr/stampa Hoboken, NJ : , : John Wiley & Sons, , [2018]
Descrizione fisica 1 online resource (398 pages)
Disciplina 621.382/4
Soggetto topico Adaptive signal processing
Beamforming
Wireless communication systems
ISBN 1-118-93823-2
1-118-93822-4
1-118-93821-6
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Nota di contenuto Wireless systems models -- Adaptive detection algorithms -- Robust RLS adaptive algorithms -- Quadratically constrained robust detection -- Robust constant modulus algorithms -- Robust adaptive beamforming -- Minimum ber adaptive detection and beamforming.
Record Nr. UNINA-9910810934003321
ElNashar Ayman  
Hoboken, NJ : , : John Wiley & Sons, , [2018]
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui