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Lifetime and latency analysis of IEEE 802.15.6 WBAN with interrupted sleep mechanism

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Abstract

It is of utmost importance in a wireless body area network (WBAN) to improve the lifetimes of devices, while restricting latencies within allowable limits. These two demands are often conflicting, and a method to ensure fairly good values for these parameters with a view to satisfying the requirements of the WBAN application would be highly desirable. We consider CSMA/CA option of the medium access in 802.15.6 standard, and propose a sleep mechanism for the devices. An M/G/1 queue with repeated inhomogeneous vacations model is used for the medium access in a typical WBAN network in hospital environments to see how the requirements of lifetimes and delays are taken care of. An analytical method for finding the probability generating function of the contention delay for medium access is developed first using Markovian techniques. The results obtained are then used in the queueing model. Comparison of theoretical values with simulations results shows a fairly close match and defines the conditions that affect the interplay of lifetimes and latencies.

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Authors and Affiliations

  1. National Institute of Technology, Kozhikode, 673601, India

    Anil K Jacob, Geethu M Kishore & Lillykutty Jacob

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  1. Anil K Jacob
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  2. Geethu M Kishore
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  3. Lillykutty Jacob
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Correspondence to Anil K Jacob.

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Jacob, A.K., Kishore, G.M. & Jacob, L. Lifetime and latency analysis of IEEE 802.15.6 WBAN with interrupted sleep mechanism. Sādhanā 42, 865–878 (2017). https://doi.org/10.1007/s12046-017-0648-2

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  • DOI: https://doi.org/10.1007/s12046-017-0648-2

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