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1、Introduction,Chapter 1,Wireless Comes of Age,Guglielmo Marconi invented the wireless telegraph in 1896 Communication by encoding alphanumeric characters in analog signal Sent telegraphic signals across the Atlantic Ocean Communications satellites launched in 1960s Advances in wireless technology Rad
2、io, television, mobile telephone, communication satellites More recently Satellite communications, wireless networking, cellular technology,Broadband Wireless Technology,Higher data rates obtainable with broadband wireless technology Graphics, video, audio Shares same advantages of all wireless serv
3、ices: convenience and reduced cost Service can be deployed faster than fixed service No cost of cable plant Service is mobile, deployed almost anywhere,Limitations and Difficulties of Wireless Technologies,Wireless is convenient and less expensive Limitations and political and technical difficulties
4、 inhibit wireless technologies Lack of an industry-wide standard Device limitations E.g., small LCD on a mobile telephone can only displaying a few lines of text E.g., browsers of most mobile wireless devices use wireless markup language (WML) instead of HTML,Part One: Background,Provides preview an
5、d context for rest of book Covers basic topics Data Communications TCP/IP,Chapter 2: Transmission Fundamentals,Basic overview of transmission topics Data communications concepts Includes techniques of analog and digital data transmission Channel capacity Transmission media Multiplexing,Chapter 3: Co
6、mmunication Networks,Comparison of basic communication network technologies Circuit switching Packet switching Frame relay ATM,Chapter 4: Protocols and the TCP/IP Protocol Suite,Protocol architecture Overview of TCP/IP Open systems interconnection (OSI) reference model Internetworking,Part Two: Wire
7、less Communication Technology,Underlying technology of wireless transmission Encoding of analog and digital data for wireless transmission,Chapter 5: Antennas and Propagation,Principles of radio and microwave Antenna performance Wireless transmission modes Fading,Chapter 6: Signal Encoding Technique
8、s,Wireless transmission Analog and digital data Analog and digital signals,Chapter 7: Spread Spectrum,Frequency hopping Direct sequence spread spectrum Code division multiple access (CDMA),Chapter 8: Coding and Error Control,Forward error correction (FEC) Using redundancy for error detection Automat
9、ic repeat request (ARQ) techniques,Part Three: Wireless Networking,Examines major types of networks Satellite-based networks Cellular networks Cordless systems Fixed wireless access schemes Use of mobile IP and Wireless Access Protocol (WAP) to provide Internet and Web access,Chapter 9: Satellite Co
10、mmunications,Geostationary satellites (GEOS) Low-earth orbiting satellites (LEOS) Medium-earth orbiting satellites (MEOS) Capacity allocation,Chapter 10: Cellular Wireless Networks,Cellular wireless network design issues First generation analog (traditional mobile telephony service) Second generatio
11、n digital cellular networks Time-division multiple access (TDMA) Code-division multiple access (CDMA) Third generation networks,Chapter 11: Cordless Systems and Wireless Local Loop,Cordless systems Wireless local loop (WLL) Sometimes called radio in the loop (RITL) or fixed wireless access (FWA),Cha
12、pter 12: Mobile IP and Wireless Access Protocol,Modifications to IP protocol to accommodate wireless access to Internet Wireless Application Protocol (WAP) Provides mobile users access to telephony and information services including Internet and Web Includes wireless phones, pagers and personal digi
13、tal assistants (PDAs),Part Four: Wireless Local Area Networks,Examines underlying wireless LAN technology Examines standardized approaches to local wireless networking,Chapter 13: Wireless LAN Technology,Overview of LANs and wireless LAN technology and applications Transmission techniques of wireles
14、s LANs Spread spectrum Narrowband microwave Infrared,Chapter 14: IEEE 802.11 Wireless LAN Standard,Wireless LAN standards defined by IEEE 802.11 committee,Chapter 15: Bluetooth,Bluetooth is an open specification for wireless communication and networking Personal computers Mobile phones Other wireless devices,Internet and Web Resources,Web page for this book WilliamS Useful web sites, errata sheet, figures, tables, slides, internet mailing list, wireless courses Computer Science Student Support Site WilliamS Newsgroups comp.std.wireless comp.dcom.*,
