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1. |
Record Nr. |
UNINA9910704486103321 |
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Autore |
Gad-el-Hak Mohamed <1945-> |
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Titolo |
Turbulence control of an airborne laser platform : phase 1 SBIR--final technical report / / Mohamed Gad-el-Hak |
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Pubbl/distr/stampa |
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Hampton, Virginia : , : National Aeronautics and Space Administration, Langley Research Center, , [1987] |
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Descrizione fisica |
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1 online resource (53 pages) : illustrations |
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Collana |
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NASA contractor report ; ; 178249 |
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Soggetti |
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Adaptive optics |
Airborne lasers |
Algorithms |
Flow stability |
Platforms |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Title from title screen (viewed Feb. 26, 2013). |
"March 1987." |
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Nota di bibliografia |
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Includes bibliographical references (pages 51-53). |
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2. |
Record Nr. |
UNINA9910812836903321 |
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Autore |
Perez Andre |
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Titolo |
Mobile networks architecture / / André Pérez |
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Pubbl/distr/stampa |
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London, : ISTE |
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Hoboken, N.J., : Wiley, 2012 |
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ISBN |
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9781118565995 |
1118565991 |
9781118562116 |
1118562119 |
9781299315853 |
1299315852 |
9781118565957 |
1118565959 |
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Edizione |
[1st edition] |
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Descrizione fisica |
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1 online resource (289 p.) |
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Collana |
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Disciplina |
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Soggetti |
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Mobile communication systems |
Cell phone systems |
Computer network architectures |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Cover; Mobile Networks Architecture; Title Page; Copyright Page; Table of Contents; Preface; Chapter 1. The GSM Network; 1.1. Services; 1.2. The architecture of the network; 1.2.1. Network components; 1.2.2. The mobile; 1.2.3. The radio sub-system; 1.2.4. The network sub-system; 1.3. The radio interface; 1.3.1. The transmission chain; 1.3.2. Source coding; 1.3.3. Channel coding; 1.3.4. Time-division multiplexing; 1.3.5. Modulation; 1.3.6. The frequency plan; 1.4. Communication management; 1.4.1. Establishment of the SDCCH; 1.4.2. Security management; 1.4.3. Location management |
1.4.4. Call management1.4.5. Handover management; Chapter 2. The GPRS Network; 2.1. Services; 2.2. Network architecture; 2.2.1. Network components; 2.2.2. Protocol architecture; 2.2.3. Logical identifiers; 2.2.4. Mobility context; 2.2.5. The WAP gateway; 2.2.6. Roaming |
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between operators; 2.3. Radio interface; 2.3.1. The transmission chain; 2.3.2. The MS-BSS interface; 2.3.3. The MS-SGSN interface; 2.4. Communication management; 2.4.1. Roaming management; 2.4.2. Session management; 2.4.3. Traffic establishment; 2.4.4. Location management; 2.5. The EDGE evolution |
2.5.1. The impact on the GSM/GPRS network2.5.2. Modification of the physical layer; 2.5.3. Modification of the RLC/MAC layer; 2.5.4. Link control; Chapter 3. The UMTS Network; 3.1. The services; 3.2. The architecture of the network; 3.2.1. Network components; 3.2.2. Protocol architecture; 3.2.3. The femtocell; 3.3. Radio interface; 3.3.1. The RRC protocol; 3.3.2. RLC protocol; 3.3.3. MAC protocol; 3.3.4. Physical layer; 3.3.5. The spread spectrum; 3.3.6. Modulation; 3.3.7. The frequency plan; 3.3.8. Power control; 3.3.9. The RAKE receiver; 3.4. Communication management |
3.4.1. The establishment of a connection for the NAS3.4.2. Paging; 3.4.3. Establishment of the RAB; 3.4.4. Soft handover; 3.4.5. Relocation; 3.4.6. Inter-system handover; 3.5. HSPA evolutions; 3.5.1. The HSDPA evolution; 3.5.2. HSUPA evolution; 3.5.3. The HSPA+ evolution; Chapter 4. The NGN; 4.1. Network architecture; 4.1.1. Network components; 4.1.2. Protocol architecture; 4.2. Communication management; 4.2.1. Communication establishment; 4.2.2. Communication release; 4.2.3. The handover; Chapter 5. The EPS Network; 5.1. Network architecture; 5.1.1. Network components |
5.1.2. Protocol architecture5.2. The radio interface; 5.2.1. Antenna system; 5.2.2. Access mode; 5.2.3. Frame structure; 5.2.4. The signals and physical channels; 5.3. Communication management; 5.3.1. The attachment procedure; 5.3.2. Location updating; 5.3.3. The establishment of a session; 5.3.4. Mobility procedure; Chapter 6. The IMS Network; 6.1. The SIP; 6.1.1. The SIP entities; 6.1.2. The SIP Identity; 6.1.3. The procedures; 6.2. The IMS architecture; 6.2.1. Control of sessions; 6.2.2. The Application Servers; 6.2.3. The databases; 6.2.4. The interconnection |
6.2.5. Multimedia flow processing |
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Sommario/riassunto |
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This book explains the evolutions of architecture for mobiles and summarizes the different technologies:- 2G: the GSM (Global System for Mobile) network, the GPRS (General Packet Radio Service) network and the EDGE (Enhanced Data for Global Evolution) evolution;- 3G: the UMTS (Universal Mobile Telecommunications System) network and the HSPA (High Speed Packet Access) evolutions:- HSDPA (High Speed Downlink Packet Access),- HSUPA (High Speed Uplink Packet Access),- HSPA+;- 4G: the EPS (Evolved Packet System) network.The telephone service and data transmission are the |
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