2012/12/18 by Jie Dong, David Smith, Dong, Jie +1
Computer Science · #FOS: Computer and information sciences #Networking and Internet Architecture (cs.NI) #Performance (cs.PF) #cs.NI #cs.PF
paper · pdf · doi:10.48550/arxiv.1212.4489
6 pages, 9 figures, ICC 2013
arxiv created 2012/12/18 · arxiv updated 2012/12/20
In this paper, a cooperative two-hop communication scheme, together with opportunistic relaying (OR), is applied within a mobile wireless body area network (WBAN). Its effectiveness in interference mitigation is investigated in a scenario where there are multiple closely-located networks. Due to a typical WBAN's nature, no coordination is used among different WBANs. A suitable time-division-multiple-access (TDMA) is adopted as both an intra-network and also an inter-network access scheme. Extensive on-body and off-body channel gain measurements are employed to gauge performance, which are overlaid to simulate a realistic WBAN working environment. It is found that opportunistic relaying is able to improve the signal-to-interference-and-noise ratio (SINR) threshold value at outage probability of 10% by an average of 5 dB, and it is also shown that it can reduce level crossing rate (LCR) significantly at a low SINR threshold value. Furthermore, this scheme is more efficient when on-body channels fade less slowly.