关键词: McWiLL, 传感器网络, 数据传输, 通用分组无线服务技术

Abstract:

To solve multi-media data transition difficulty in large scale water pump sensor network, a new sensor network based on McWiLL broadband wireless access technology was designed. Components functions  of sensor network  were designed, network plan was studied, and small testing sensor network containing one base station was established. In the testing system, delay time in data transmission of the covered area were measured. Comparing the network based on McWiLL with network based on GPRS（Gerneral Packet Radio Service）, testing results show that the sensor network based on McWiLL can sample and transmit multi-media data. Average delay time in McWiLL is decreased by 20%. Maximum data transmission delay is decreased to 1/3 of GPRS. Covering area radius of single base station is 16 km. The designed data transmission system can satisfy the design requirement.

Key words: multi-carrier wireless information local loop(McWiLL), sensor network, data transmission, gerneral packet radio service（GPRS）