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Co-Channel Interference in Body Area Networks with Indoor Measurements at 2.4 GHz: Distance-to-Interferer is a Poor Estimate of Received Interference Power

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Abstract

Inter-network interference is likely to be a significant source of difficulty for wireless body area networks. Movement, proximity of networks, the large number of nodes per network and the lack of central coordination make cellular approaches to interference modeling ineffective. We examine the interference power of multiple Body Area Networks (BANs) when people move randomly within an indoor office environment. The power-loss trend over 3 m is overwhelmed by random variations in the signal power. Distance-to-interferer is a poor estimate of instantaneous received interference power, and an even less reliable estimate of instantaneous signal-to-interference ratio (SIR). We develop a lognormal statistical model for the signal-to-interference which incorporates the distance effect.

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Acknowledgment

The authors would like to thank the test subjects for their co-operation in producing this research. L. Hanlen, D. Miniutti, D. Smith, D. Rodda, and B. Gilbert are with NICTA. NICTA is funded by the Australian Government as represented by the Department of Broadband, Communications and the Digital Economy and the Australian Research Council through the ICT Centre of Excellence program. L. Hanlen, D. Miniutti, and D. Smith also hold research positions with the Faculty of Engineering, Australian National University. A part of this work appeared in [39]

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  1. NICTA, Canberra, Australia

    L. W. Hanlen, D. Miniutti, D. Smith, D. Rodda & B. Gilbert

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  1. L. W. Hanlen
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  2. D. Miniutti
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Correspondence to L. W. Hanlen.

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Hanlen, L.W., Miniutti, D., Smith, D. et al. Co-Channel Interference in Body Area Networks with Indoor Measurements at 2.4 GHz: Distance-to-Interferer is a Poor Estimate of Received Interference Power. Int J Wireless Inf Networks 17, 113–125 (2010). https://doi.org/10.1007/s10776-010-0123-z

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