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Produktbild: High-Density and De-Densified Smart Campus Communications

High-Density and De-Densified Smart Campus Communications Technologies, Integration, Implementation and Applications

149,99 €

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Beschreibung

Produktdetails

Einband

Gebundene Ausgabe

Erscheinungsdatum

13.12.2021

Verlag

John Wiley & Sons

Seitenzahl

368

Maße (L/B/H)

26/18,3/2,4 cm

Gewicht

881 g

Auflage

1. Auflage

Sprache

Englisch

ISBN

978-1-119-71605-1

Beschreibung

Produktdetails

Einband

Gebundene Ausgabe

Erscheinungsdatum

13.12.2021

Verlag

John Wiley & Sons

Seitenzahl

368

Maße (L/B/H)

26/18,3/2,4 cm

Gewicht

881 g

Auflage

1. Auflage

Sprache

Englisch

ISBN

978-1-119-71605-1

Herstelleradresse

Libri GmbH
Europaallee 1
36244 Bad Hersfeld
DE

Email: gpsr@libri.de

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  • Produktbild: High-Density and De-Densified Smart Campus Communications
  • Preface xi
     
    About The Authors xiii
     
    Acknowledgement xv
     
    1 Background and Functional Requirements for High-Density Communications 1
     
    1.1 Background 1
     
    1.2 Requirements for High-Density Communications 4
     
    1.2.1 Pre-pandemic/Long-term Requirements for Airports 5
     
    1.2.2 Pre-pandemic/Long-term Requirements for Stadiums 7
     
    1.2.3 Pre-pandemic/Long-term Requirements for Convention Centers 7
     
    1.2.4 Pre-pandemic/Long-term Requirements for Open Air Gatherings and Amusement Parks 10
     
    1.2.5 Pre-pandemic/Long-term Requirements for Classrooms 11
     
    1.2.6 Pre-pandemic/Long-term Requirements for Train and Subway Stations 12
     
    1.2.7 Pre-pandemic/Long-term Requirements for Dense Office Environments 12
     
    1.2.8 Ongoing Requirements for Dense Smart Warehouses and Distribution Centers 14
     
    1.2.9 Pre-pandemic/Long-term Requirements for Dense Smart Cities 14
     
    1.3 Pandemic-Driven Social Distancing 16
     
    1.3.1 Best Practices 16
     
    1.3.2 Heuristic Density for the Pandemic Era 20
     
    1.4 The Concept of a Wireless Super Network 20
     
    References 22
     
    2 Traditional WLAN Technologies 26
     
    2.1 Overview 26
     
    2.2 WLAN Standards 28
     
    2.3 WLAN Basic Concepts 29
     
    2.3.1 PHY Layer Operation 32
     
    2.3.2 MAC Layer Operation 36
     
    2.4 Hardware Elements 40
     
    2.5 KEY IEEE 802.11ac Mechanisms 42
     
    2.5.1 Downlink Multi-User MIMO (DL-MU-MIMO) 42
     
    2.5.2 Beamforming 45
     
    2.5.3 Dynamic Frequency Selection 45
     
    2.5.4 Space-Time Block Coding 46
     
    2.5.5 Product Waves 48
     
    2.6 Brief Preview of IEEE 802.11ax 48
     
    References 49
     
    3 Traditional DAS Technologies 51
     
    3.1 Overview 51
     
    3.2 Frequency Bands of Cellular Operation 56
     
    3.2.1 Traditional RF Spectrum 56
     
    3.2.2 Citizens Broadband Radio Service (CBRS) 60
     
    3.2.3 Freed-up Satellite C-Band 62
     
    3.2.4 5G Bands 64
     
    3.2.5 Motivations for Additional Spectrum 65
     
    3.2.6 Private LTE/Private CBRS 66
     
    3.2.7 5G Network Slicing 68
     
    3.2.8 Supportive Technologies 68
     
    3.3 Distributed Antenna Systems (DASs) 70
     
    3.3.1 Technology Scope 70
     
    3.3.2 More Detailed Exemplary Arrangement 76
     
    3.3.3 Traffic-aware DAS 81
     
    3.3.4 BBU and DAS/RRU Connectivity 82
     
    3.3.5 Ethernet/IP Transport Connectivity of DAS 84
     
    References 84
     
    4 Traditional Sensor Networks/IoT Services 87
     
    4.1 Overview and Environment 87
     
    4.2 Architectural Concepts 93
     
    4.3 Wireless Technologies for the IoT 96
     
    4.3.1 Pre-5G Wireless Technologies for the IoT 100
     
    4.3.2 NB-IoT 104
     
    4.3.3 LTE-M 105
     
    4.3.4 5G Technologies for the IoT 106
     
    4.3.5 WAN-Oriented IoT Connectivity Migration Strategies 108
     
    4.4 Examples of Seven-Layer IoT Protocol Stacks 109
     
    4.4.1 UPnP 109
     
    4.4.2 ZigBee 115
     
    4.4.3 Bluetooth 116
     
    4.5 Gateway-Based IoT Operation 117
     
    4.6 Edge Computing in the IoT Ecosystem 118
     
    4.7 Session Establishment Example 121
     
    4.8 IoT Security 121
     
    4.8.1 Challenges 121
     
    4.8.2 Applicable Security Mechanisms 125
     
    4.8.3 Hardware Considerations 127
     
    4.8.4 Other Approaches: Blockchains 132
     
    References 132
     
    5 Evolved Campus Connectivity 139
     
    5.1 Advanced Solutions 140
     
    5.1.1 802.11ax Basics 143
     
    5.1.2 Key 802.11ax Processes 154
     
    5.1.3 Summary 156
     
    5.2 Voice Over Wi-Fi (VoWi-Fi) 158
     
    5.3