Wireless Personal and Local Area Networks

Inbunden, Engelska, 2003

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Wireless LANs are the 'silver bullet' for networks of the future, allowing small communities of office workers, industrial workers, hospital employees, technical teams, etc. to communicate via their mobile devices without having to worry about cables. Scenarios include: small buisnesses where everyone's lap tops are connected the minute they walk through the door so they can move around from office to meeting room and stay on the network throughout; hospital nurses carrying out foetal scans without the need for the scanning device to be connected to the screen; construction sites where the technical foreman can log onto the same system as the architect and compare plans on their respective lap tops. At the moment there are various different technologies, all of which suit different scenarios. Many books discuss wLANs in concept, but do not cover the different technologies, or demonstrate how to build a wLAN with only one of the technologies. This book is unique in presenting the broader picture and providing decision makers with the tools they need to make the appropriate investment for their own situation.* The only book that gives a broad overview of all the different technologies* Discusses which technologies are best for different situations and requirements along with business trade-offs* Gives practical hints and advice on how to implement the technologies* Includes a chapter on the practical details of operating an IEEE802.11b-wLAN together with application examples* Covers security considerations

Produktinformation

Utgivningsdatum2003-02-21
Mått173 x 252 x 15 mm
Vikt508 g
FormatInbunden
SpråkEngelska
Antal sidor216
FörlagJohn Wiley & Sons Inc
ISBN9780470851104

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Preface xiStructure of the book xii1 Introduction 11.1 Definition and restriction 11.2 Overview of advantages and disadvantages 11.3 Applications overview 31.4 Market events 61.5 Organizations and governing bodies 122 Basics 172.1 History of wireless vs. wired 172.2 Technical communication models and classification 202.3 Demands on transfer networks 262.4 Properties of electromagnetic waves 282.5 Digital modulation technology 332.6 Channel access 382.7 Spread spectrum techniques 392.8 Orthogonal frequency division multiplex procedure 432.9 Antennae2.10 Special features of wireless networks 472.11 Frequency allocations 483 Applications, devices and standards 513.1 Application scenarios 513.2 Device types 533.3 Standards 544 IEEE802.11 574.1 The standard 574.2 Architectures 594.3 Channel access 614.4 The Physical layer and bit transfer 814.5 Other services 864.6 Security 864.7 Extensions to the standard 885 Bluetooth 955.1 The standard 955.2 Architectures 995.3 Channel access 995.4 Controlling states 1045.5 Bit transfer 1085.6 Security 1105.7 System implementation 1106 DECT 1136.1 The standard 1136.2 Architectures 1136.3 Channel access 1146.4 Bit transfer 1156.5 Application profiles 1157 HomeRF 1177.1 The standard 1177.2 Architectures 1177.3 Channel access 1197.4 Bit transfer 1218 HiperLAN/2 1238.1 The standard 1238.2 Architectures 1258.3 Channel access 1278.4 Bit transfer 1308.5 Other services 1328.6 The HiperLAN/2 standard versus IEEE802.1 a 1329 Operating an IEEE802.11b-complaint WLAN 1339.1 Introduction 1339.2 Mobile stations 1339.3 Access points 1369.4 Extended networks 1419.5 Network analysis 1439.6 Examples from real life 14810 Various aspects of WLAN technology 15310.1 Security10.2 Sources of interference 16110.3 Selecting a spread spectrum technique 16310.4 Aspects of EMT interference 16510.5 WLANs and TCP/IP 16710.6 Deciding factors 16710.7 Future prospects 169Appendix 171A.1 Maxwellian equations 171A.2 Physical basis of direct sequence spread spectrum process 171A.3 Directional antennae 174B Bibliography 179B.1 English-language publications 179B.2 German-language publications 182C Abbreviations 185