Opportunistic Packet Scheduling in Body Area Networks
Ref: HURRAY-TR-111201 Publication Date: 15, Dec, 2011
Opportunistic Packet Scheduling in Body Area Networks
Ref: HURRAY-TR-111201 Publication Date: 15, Dec, 2011Abstract:
Significant research efforts are being devoted to body area networks (BAN) due
to their potential for revolutionizing healthcare practices. Energy-efficiency
and communication reliability are critically important for these networks. In an
experimental study with three different mote platforms, we show that changes in
human body shadowing as well as those in the relative distance and orientation
of nodes caused by common human body movements can result in significant
fluctuations in the received signal strength within a BAN. Furthermore, regular
movements, such as walking, typically manifest in approximately periodic variations in signal strength. We present an algorithm that predicts the signal strength peaks and evaluate it on real-world data. We present the design of an opportunistic MAC protocol, named BANMAC, that takes advantage
of the periodic fluctuations of the signal strength to achieve high reliability
even with low transmission power.
Shashi Prabh
Jan-Hinrich HauerDocument:
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DownloadWOS ID: 000296829600008.
Notes: EWSN 2011
Record Date: 15, Dec, 2011