Research on Location Based Service Within Wireless LAN

With the advancing of WLAN technology, how to provide helpful and convenient services becomes the bottle neck of WLAN’s furtherdevelopment. WLAN’s current status and its embarrassment are discussed. Then, the concept of location based service (LBS) within WLAN is putforward. Thirdly, the WLAN RSSI based positioning method and the system infrastructure are analyzed in detail. Finally, according to the result ofprototype experiment,the factors which influence the positioning accuracy are discussed.