On PHY and MAC Performance in Body Sensor Networks

Sana Ullah, Henry Higgins, S. M.Riazul Islam, Pervez Khan, Kyung Sup Kwak

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


This paper presents an empirical investigation on the performance of body implant communication using radio frequency (RF) technology. In body implant communication, the electrical properties of the body influence the signal propagation in several ways. We use a Perspex body model (30cm diameter, 80cm height and 0.5cm thickness) filled with a liquid that mimics the electrical properties of the basic body tissues. This model is used to observe the effects of body tissue on the RF communication. We observe best performance at 3cm depth inside the liquid. We further present a simulation study of several low-power MAC protocols for an on-body sensor network and discuss the derived results. Also, the traditional preamble-based TMDA protocol is extended towards a beacon-based TDMA protocol in order to avoid preamble collision and to ensure low-power communication.
Original languageEnglish
Article number479512
Number of pages7
JournalEurasip Journal on Wireless Communications and Networking
Publication statusPublished - 23 Jun 2009
Externally publishedYes


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