Propagation Models for Body Area Networks: A Survey and New Outlook

Select |


Smith, David; Miniutti, Dino; Lamahewa, Tharaka; Hanlen, Leif


Journal Article

IEEE Antennas and Propagation Magazine




This article is a review of wireless body area network (BAN) channel models, with observations about the selection of the best channel model, in terms of both first and second-order statistics. Particular insight into the dominant factors that affect propagation for BAN is given. Important second order statistical measures are discussed, where coherence times and fade durations are of particular interest. The IEEE 802.15.6 standard is used as a basis for the review, with observations and insights given about BAN. In this context narrowband and ultra-wideband (UWB) models are summarized for different measurement environments and carrier frequencies. On-body, in-body and off-body propagation models are discussed where appropriate. In general, lognormal fading or gamma fading models of the BAN channel are most applicable. A goodness-of-fit criterion, which directly trades-off model error and complexity, is presented that gives a new outlook for channel modeling. By this new outlook it is demonstrated that through significant simplification of individual link propagation models for BAN it is possible to combine link models with only a few parameters. Common misconceptions regarding the appropriateness of applying traditional path loss measures to these short range networks are then exposed. Finally, the use of relays, which is an option in IEEE 802.15.6, is shown to be important to maintain reliability in various BAN propagation scenarios.

Body area networks, channel models, fading, radio propagation



Smith, David; Miniutti, Dino; Lamahewa, Tharaka; Hanlen, Leif. Propagation Models for Body Area Networks: A Survey and New Outlook. IEEE Antennas and Propagation Magazine. 2013-10; 55(5):97-117. <a href="" target="_blank"></a>

Loading citation data...

Citation counts
(Requires subscription to view)