04601nam 2200457 450 991049102410332120220330130416.03-030-77459-7(CKB)4100000011978981(MiAaPQ)EBC6676373(Au-PeEL)EBL6676373(OCoLC)1260348503(EXLCZ)99410000001197898120220330d2021 uy 0engurcnu||||||||txtrdacontentcrdamediacrrdacarrierBeamforming antennas in wireless networks multihop and millimeter wave communication networks /Osama Bazan, Baha Uddin Kazi, Muhammad JaseemuddinCham, Switzerland :Springer,[2021]©20211 online resource (128 pages)SpringerBriefs in electrical and computer engineering3-030-77458-9 Intro -- Contents -- 1 Introduction -- 1.1 Wireless Networks -- 1.2 Beamforming Antennas: A Promising Technology -- 1.2.1 Potential Benefits -- 1.2.2 Challenges in the Upper Layers -- 1.3 Organization of the Book -- References -- 2 Overview of Beamforming Antennas -- 2.1 Fundamentals -- 2.2 Smart Antennas Technology -- 2.2.1 Beamforming Antennas -- 2.2.2 MIMO Systems -- 2.3 Types of Beamforming Antennas -- 2.3.1 Switched Beam Antenna Systems -- 2.3.2 Steered Beam Antenna Systems -- 2.4 Millimeter Wave Beamforming -- References -- 3 MAC Issues -- 3.1 Medium Access Control with Omni-Directional Antennas -- 3.2 MAC Challenges with Beamforming Antennas -- 3.2.1 Deafness -- 3.2.2 New Hidden Terminals -- 3.2.3 Head-of-Line Blocking -- 3.2.4 Communication Range Under-Utilization -- 3.2.5 MAC-Layer Capture -- References -- 4 Directional MAC -- 4.1 Directional MAC Design Choices -- 4.1.1 Transmission Mode of RTS/CTS Packets -- 4.1.2 Virtual Carrier Sensing -- 4.1.3 Idle Listening Mode -- 4.1.4 Backoff -- 4.1.5 Beamforming Information -- 4.1.6 Tones -- 4.1.7 Synchronized Access -- 4.2 Overview of Directional MAC Protocols -- 4.2.1 Classification -- 4.2.2 Random Access Protocols -- 4.2.3 Synchronized Access Protocols -- 4.3 Basic Directional MAC (DMAC) -- 4.3.1 DMAC with Omni-Directional Backoff -- 4.4 Circular Directional RTS MAC (CDR) -- 4.5 Opportunistic Directional MAC (OPMAC) -- 4.5.1 Main Design Considerations -- 4.5.2 Protocol Description -- 4.5.3 Performance Evaluation -- References -- 5 Enhanced MAC for Millimeter Wave Communication -- 5.1 Introduction -- 5.2 Beacon Frame -- 5.3 Enhanced Distributed Channel Access (EDCA) -- 5.4 Multiple Channel Access -- 5.5 Cooperative MAC Protocol -- 5.5.1 Contention Free Cooperative MAC Protocol -- 5.5.2 Contention-Based Cooperative MAC Protocol -- 5.6 Dual-Band MAC Protocol.5.7 Pre-defined Virtual Grouping MAC Protocol -- References -- 6 Directional Routing -- 6.1 Introduction -- 6.2 Neighbor Discovery -- 6.3 Route Discovery -- 6.3.1 Route Discovery Optimization -- 6.4 Directional Routing Schemes -- 6.4.1 Directional DSR (DDSR) -- 6.4.2 Directional Routing Protocol (DRP) -- 6.4.3 Zone Disjoint Routing (ZDR) -- 6.4.4 DSR with Directional Antenna for Partition Bridging -- 6.4.5 Capture-Aware Routing -- References -- 7 Directional QoS Routing Framework -- 7.1 QoS Guarantees in Multi-hop Wireless Networks -- 7.1.1 QoS Routing with Contention-Free MAC -- 7.1.2 QoS Routing with Contention-Based MAC -- 7.2 Conflict Analysis Framework -- 7.2.1 System Model -- 7.2.2 Classification of Link Conflicts -- 7.2.3 Colored Conflict Graph -- 7.3 QoS Routing Problem -- 7.3.1 Problem Formulation -- 7.3.2 Probability of Successful Transmission PS(i, j) -- 7.3.3 QoS Routing Algorithm -- 7.4 Performance Evaluation -- References -- 8 Open Research Areas -- 8.1 Cross Layer Design for Directional MAC and Routing -- 8.2 Multi-hop Wireless Networks with Heterogeneous Antennas -- 8.3 Using Beamforming Antennas in Indoor Environments -- 8.4 Analytical Modeling for Directional MAC -- 8.5 QoS-Aware Directional Routing Protocols -- 8.6 Joint Optimization of Different Physical Layer Capabilities -- 8.7 Research Issues for mmWave WLAN -- References.SpringerBriefs in electrical and computer engineering.BeamformingBeamforming.621.3822Bazan Osama995761Kazi Baha UddinJaseemuddin MuhammadMiAaPQMiAaPQMiAaPQBOOK9910491024103321Beamforming Antennas in Wireless Networks2281715UNINA02079nam0 22004213i 450 VAN026320020240110085227.561N978354038938520230912d1984 |0itac50 baengDE|||| |||||Compact Semitopological SemigroupsAn Intrinsic TheoryWolfgang RuppertBerlinSpringer1984vi, 260 p.24 cm001VAN01022502001 Lecture notes in mathematics210 Berlin [etc.]Springer107922-XXTopological groups, Lie groups [MSC 2020]VANC020459MF43A60Almost periodic functions on groups and semigroups and their generalizations (recurrent functions, distal functions, etc.); almost automorphic functions [MSC 2020]VANC022696MF22A15Structure of topological semigroups [MSC 2020]VANC024320MF57SxxTopological transformation groups [MSC 2020]VANC024328MF54H12Topological lattices, etc. (topological aspects) [MSC 2020]VANC036390MF22A26Topological semilattices, lattices and application [MSC 2020]VANC037701MF06B30Topological lattices [MSC 2020]VANC037702MFCompactificationKW:KConstructionKW:KManifoldsKW:KSemigroupsKW:KBerlinVANL000066RuppertWolfgang A. F.VANV044234725875Springer <editore>VANV108073650ITSOL20240614RICAhttps://doi.org/10.1007/BFb0073675E-book – Accesso al full-text attraverso riconoscimento IP di Ateneo, proxy e/o ShibbolethBIBLIOTECA DEL DIPARTIMENTO DI MATEMATICA E FISICAIT-CE0120VAN08NVAN0263200BIBLIOTECA DEL DIPARTIMENTO DI MATEMATICA E FISICA08CONS e-book 6599 08eMF6599 20230926 Compact Semitopological Semigroups3551643UNICAMPANIA