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Wireless personal and local area networks

著者: Axel Sikora
出版商: Chichester, West Sussex, England ; Hoboken, NJ : Wiley, ©2003.
版本/格式:   图书 : 英语查看所有的版本和格式
数据库:WorldCat
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附加的形体格式: Online version:
Sikora, Axel.
Wireless personal and local area networks.
Chichester, West Sussex, England ; Hoboken, NJ : Wiley, c2003
(OCoLC)594249953
Online version:
Sikora, Axel.
Wireless personal and local area networks.
Chichester, West Sussex, England ; Hoboken, NJ : Wiley, c2003
(OCoLC)606982130
材料类型: 互联网资源
文件类型: 书, 互联网资源
所有的著者/提供者: Axel Sikora
ISBN: 0470851104 9780470851104
OCLC号码: 51095744
描述: xiii, 195 p. : ill. ; 25 cm.
内容: 1.1 Definition and restriction 1 --
1.2 Overview of advantages and disadvantages 1 --
1.3 Applications overview 3 --
1.3.1 Adding value by using a WLAN 3 --
1.3.2 Mobile workstations 3 --
1.3.3 Reducing the number of network cable connections 4 --
1.3.4 Training centres 4 --
1.3.5 Mobile data entry systems 4 --
1.3.6 Hot spots 5 --
1.3.7 External networking 5 --
1.3.8 Wireless Local Loop 5 --
1.3.9 Industrial applications 5 --
1.3.10 Ad hoc networking 5 --
1.4 Market events 6 --
1.4.1 Initial situation 6 --
1.4.2 The "new market" 6 --
1.4.3 Technologies in competition 8 --
1.4.4 Convergence 8 --
1.4.5 Interconnection instead of intermingling 8 --
1.4.6 Supplier positioning 9 --
1.4.7 Differentiating between the manufacturers 10 --
1.4.8 Growing market 12 --
1.5 Organisations and governing bodies 12 --
1.5.1 Telecommunications regulators 13 --
1.5.2 Standards and standardisation committees 13 --
1.5.3 De facto standards and interest groups 14 --
2.1 History of wireless messaging 17 --
2.1.1 Wireless vs. wired 17 --
2.1.2 Optical telegraphy 17 --
2.1.3 Using electromagnetic waves 18 --
2.1.4 The wireless precursors to Ethernet 18 --
2.1.5 Modern use of optical systems 19 --
2.2 Technical communication models and classification 20 --
2.2.1 Reference models 20 --
2.2.2 Classification of channel access 22 --
2.2.3 Physical communication model 23 --
2.2.4 Communications classification system 23 --
2.3 Demands on transfer networks 26 --
2.3.1 Traffic types 26 --
2.3.2 Transfer speed 27 --
2.4 Properties of electromagnetic waves 28 --
2.4.1 Maxwellian equations 28 --
2.4.2 The diffusion of electromagnetic waves 28 --
2.4.3 Limitations on the diffusion of electromagnetic waves 29 --
2.4.4 Using light for communications 32 --
2.5 Digital modulation technology 33 --
2.5.1 Basic principles 33 --
2.5.2 Phase shift keying 35 --
2.5.3 Frequency or phase shift keying 37 --
2.6 Channel access 38 --
2.6.2 Time division multiple access 38 --
2.6.3 Frequency multiplex procedure 38 --
2.6.4 Combined procedure 39 --
2.6.5 Space division multiple access 39 --
2.7 Spread spectrum techniques 39 --
2.7.2 Frequency hopping spread spectrum procedure 41 --
2.7.3 Direct sequence spread spectrum process 41 --
2.8 Orthogonal frequency division multiplex procedure 43 --
2.9 Antennae 45 --
2.9.1 Isotropic and anisotropic antennae 45 --
2.9.2 Diversity 45 --
2.9.3 Polarisation 46 --
2.9.4 Location 46 --
2.9.5 Selection 47 --
2.10 Special features of wireless networks 47 --
2.10.1 Wireless networks use a common medium 47 --
2.10.2 Spatial characteristics 48 --
2.11 Frequency allocations 48 --
3 Applications, devices and standards 51 --
3.1 Application scenarios 51 --
3.1.1 Personal Area Networks 51 --
3.1.2 Local Area Networks 52 --
3.1.3 SoHo LANs 52 --
3.1.4 Office LANs 52 --
3.1.5 Connecting networks 53 --
3.2 Device types 53 --
3.3 Standards 54 --
4 IEEE802.11 57 --
4.1 The standard 57 --
4.1.1 Positioning 57 --
4.1.2 Structure 58 --
4.1.3 Extensions 58 --
4.2 Architectures 59 --
4.2.1 System architectures 59 --
4.2.2 Protocol architecture 60 --
4.3 Channel access 61 --
4.3.1 Where it fits in 61 --
4.3.2 Distributed Coordination Function 62 --
4.3.3 RTS-CTS mechanism 67 --
4.3.4 Fragmentation of long messages 70 --
4.3.5 Point Coordination Function 71 --
4.3.6 Frame formats in the MAC layer 73 --
4.3.7 Managing stations 76 --
4.3.8 Addressing stations 80 --
4.4 The Physical layer and bit transfer 81 --
4.4.1 Where it fits in 81 --
4.4.2 Frequency Hopping Spread Spectrum 81 --
4.4.3 Direct Sequence Spread Spectrum 83 --
4.5 Other services 86 --
4.5.1 Synchronisation 86 --
4.5.2 Power-saving mode 86 --
4.5.3 ESS services 86 --
4.6 Security 86 --
4.7 Extensions to the standard 88 --
4.7.1 The IEEE802.11a standard 88 --
4.7.2 The IEEE802.11b standard 89 --
4.7.3 Other standards 92 --
5 Bluetooth 95 --
5.1 The standard 95 --
5.1.2 Structure 96 --
5.1.3 Standard Bluetooth elements 97 --
5.1.4 Profiles 98 --
5.2 Architectures 99 --
5.3 Channel access 99 --
5.3.1 Prioritisation 99 --
5.3.2 Frame formats 102 --
5.3.3 Audio transmission 103 --
5.4 Controlling states 104 --
5.4.2 Establishing a connection 105 --
5.4.3 Operating a connection 107 --
5.4.4 Addressing 108 --
5.5 Bit transfer 108 --
5.6 Security 110 --
5.7 System implementation 110 --
6 DECT 113 --
6.1 The standard 113 --
6.2 Architectures 113 --
6.3 Channel access 114 --
6.4 Bit transfer 115 --
6.5 Application profiles 115 --
6.5.1 Voice telephony 115 --
6.5.2 Data transmission 116 --
7 HomeRF 117 --
7.1 The standard 117 --
7.2 Architectures 117 --
7.2.1 System architecture 117 --
7.2.2 Protocol architecture 118 --
7.3 Channel access 119 --
7.3.1 Where it fits in 119 --
7.3.2 Asynchronous transfer 120 --
7.3.3 Synchronous transfer 120 --
7.3.4 Isochronous transfer 120 --
7.4 Bit transfer 121 --
7.4.1 1 MHz channels 121 --
7.4.2 5 MHz channels 122 --
8 HiperLAN/2 123 --
8.1 The standard 123 --
8.1.1 Supplier positioning 123 --
8.1.2 Market launch 124 --
8.2 Architectures 125 --
8.2.1 System architecture 125 --
8.2.2 Protocol architecture 125 --
8.3 Channel access 127 --
8.4 Bit transfer 130 --
8.4.1 Frequency allocations 130 --
8.4.2 Modulation procedures 131 --
8.5 Other services 132 --
8.6 The HiperLAN/2 standard versus IEEE802.11a 132 --
9 Operating an IEEE802.11b-compliant WLAN 133 --
9.2 Mobile stations 133 --
9.2.1 Construction types 133 --
9.2.2 Capabilities 133 --
9.2.3 Administration 134 --
9.3 Access points 136 --
9.3.1 Structure 136 --
9.3.2 Capabilities 138 --
9.3.3 Administration 138 --
9.4 Extended networks 141 --
9.4.1 Linked networks 141 --
9.4.2 Structured networks 141 --
9.4.3 High user densities 142 --
9.4.4 Administering extended networks 142 --
9.5 Network analysis 143 --
9.5.2 Simple analysis tools 143 --
9.5.3 Sniffers 146 --
9.6 Examples from real life 148 --
9.6.1 LAN-LAN connection 148 --
9.6.2 Mobile computer room 150 --
9.6.3 Changing stations in the hotel 151 --
10 Various aspects of WLAN technology 153 --
10.1 Security 153 --
10.1.2 Security risks 154 --
10.1.3 Countermeasures 155 --
10.2 Sources of interference 161 --
10.2.2 Influence caused by identical systems 162 --
10.2.3 Influence caused by competing systems 162 --
10.2.4 Influence caused by other radio networks 163 --
10.2.5 Influence caused by other noise pulse generators 163 --
10.3 Selecting a spread spectrum technique 163 --
10.3.2 Spectral efficiency 164 --
10.3.3 Security against eavesdropping 164 --
10.3.4 Sensitivity to interference 165 --
10.4 Aspects of EMT interference 165 --
10.4.2 Regulations 165 --
10.4.3 Comparison with GSM mobile telephony 165 --
10.5 WLANs and TCP/IP 166 --
10.6 Deciding factors 167 --
10.6.2 Selecting a LAN technology 168 --
10.6.3 Selecting a WLAN technology 168 --
10.6.4 Selecting a WLAN product 168 --
10.7 Future prospects 169 --
A.1 Maxwellian equations 171 --
A.2 Physical basis of direct sequence spread spectrum process 171 --
A.3 Directional antennae 174 --
B.1 English-language publications 179 --
B.2 German-language publications 182.
责任: Axel Sikora.
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