Research On Multi-hops Routing In Body Area Networks

Recent advances in wireless communication and electronic manufacture have en-abled a variety of sensors to be used for Wireless Body Area Networks (WBANs),which can provide real-time body monitoring and feedback for enabling patient diag-nostics procedure, rehabilitation, sports training and interactive performance. Howev-er, existing single-hop wireless communication scheme faces several major challenges:rapid growth of channel conficts as more sensors added, impermeability of humanbody to radio waves and highly dynamic network topology due to human movements.In this paper, a prototype of multi-hop WBAN has been built to quantify the channelconfict and to characterise the network connectivity during human motions. A proba-bility based routing protocol fusing inertial sensor data and history link quality is thendeveloped, which aims at capturing the high spatio-temporal change of network topol-ogy on the selection of a reliable relay node in WBAN routing. The performance ofthe protocol is experimentally evaluated on our prototype system. Compared with anumber of existing routings, the proposed scheme is more splendid in terms of averagedelivery ratio, number of hops and end-to-end delay.