Advanced topics in Next- Generation wireless Networks Introduction of wireless networks Qian Zhang Department of Computer Science HKUST
Advanced Topics in NextGeneration Wireless Networks Qian Zhang Department of Computer Science HKUST Introduction of Wireless Networks
Why Wireless? Convenience and flexible anytime · Mobility Coverage anywhere · Easy to deploy Low cost any device New applications potential Improved quality of life(people with service disabilities) 4A: Anytime, Anywhere, Any device, and Any service
Why Wireless? • Convenience and flexible • Mobility • Coverage • Easy to deploy • Low cost • New applications potential • Improved quality of life (people with disabilities) anytime anywhere any device service 4A: Anytime, Anywhere, Any device, and Any service
Fast Growing devices Create New Connectivity Demands
Fast Growing Devices Create New Connectivity Demands
Wireless technologies coverage Bluetooth WWAN (3G, 4G?) UWB RFID WMAN Wi-Max) WLAN (Wi-Fi) WPAN
Wireless Technologies WWAN (3G,4G?) WLAN (Wi-Fi) WPAN WMAN (Wi-Max) Bluetooth UWB RFID coverage
Big picture- WPAN's Wpan technologies RFiD, bluetooth, UWB RFID used in tagging applications restricted environments(supermarkets institutions) 10 billion RFid tags been sold by the end of 2005 (source: Deloitte Touche) Bluetooth technology has matured 56 of mainstream devices commercialised will have bluetooth support by 2008(Source: IDC UWB: bandwidth larger than 500MHZ Two main camp: DS-UWB (Motolora)vs. MBOA OFDM UWB(Intel+TI)
Big Picture – WPAN’s • WPAN technologies – RFID, Bluetooth, UWB • RFID used in tagging applications, restricted environments (supermarkets, institutions) • 10 billion RFID tags been sold by the end of 2005 (source: Deloitte & Touche) • Bluetooth – technology has matured • 56% of mainstream devices commercialised will have Bluetooth support by 2008 (Source: IDC) • UWB: bandwidth larger than 500MHz • Two main camp: DS-UWB (Motolora) vs. MBOAOFDM UWB (Intel+TI)