Path loss variation of on-body UWB channel in the frequency bands of IEEE 802.15.6 standard

[摘要] The wireless body area network (WBAN) has gaining tremendous attention among researchers and academicians for its envisioned applications in healthcare service. Ultra wideband (UWB) radio technology is considered as excellent air interface for communication among body area network devices. Characterisation and modelling of channel parameters are utmost prerequisite for the development of reliable communication system. The path loss of on-body UWB channel for each frequency band defined in IEEE 802.15.6 standard is experimentally determined. The parameters of path loss model are statistically determined by analysing measurement data. Both the line-of-sight and non-line-of-sight channel conditions are considered in the measurement. Variations of parameter values with the size of human body are analysed along with the variation of parameter values with the surrounding environments. It is observed that the parameters of the path loss model vary with the frequency band as well as with the body size and surrounding environment. The derived parameter values are specific to the particular frequency bands of IEEE 802.15.6 standard, which will be useful for the development of efficient UWB WBAN system.

[学科分类] 肠胃与肝脏病学

[关键词] IEEE standards;body sensor networks;health care;ultra wideband technology;biomedical measurement;on-body UWB channel path loss variation;IEEE standard;wireless body area network;health care service;ultrawideband radio technology;body area network device;communication system;path loss model;UWB WBAN system