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J Med Syst. 2016 Dec;40(12):276. Epub 2016 Oct 27.

Performance Analysis of IEEE 802.15.6 CSMA/CA Protocol for WBAN Medical Scenario through DTMC Model.

Author information

1
Department of Electronics and Communication Engineering, Pranveer Singh Institute of Technology, Kanpur, Uttar Pradesh, India. mr.vivek.1988@ieee.org.
2
Department of Electronics and Communication Engineering, Birla Institute of Technology Mesra, Ranchi, Jharkhand, India. mr.vivek.1988@ieee.org.
3
Department of Electronics and Communication Engineering, Birla Institute of Technology Mesra, Ranchi, Jharkhand, India.

Abstract

The newly drafted IEEE 802.15.6 standard for Wireless Body Area Networks (WBAN) has been concentrating on a numerous medical and non-medical applications. Such short range wireless communication standard offers ultra-low power consumption with variable data rates from few Kbps to Mbps in, on or around the proximity of the human body. In this paper, the performance analysis of carrier sense multiple access with collision avoidance (CSMA/CA) scheme based on IEEE 802.15.6 standard in terms of throughput, reliability, clear channel assessment (CCA) failure probability, packet drop probability, and end-to-end delay has been presented. We have developed a discrete-time Markov chain (DTMC) to significantly evaluate the performances of IEEE 802.15.6 CSMA/CA under non-ideal channel condition having saturated traffic condition including node wait time and service time. We also visualize that, as soon as the payload length increases the CCA failure probability increases, which results in lower node's reliability. Also, we have calculated the end-to-end delay in order to prioritize the node wait time cause by backoff and retransmission. The user priority (UP) wise DTMC analysis has been performed to show the importance of the standard especially for medical scenario.

KEYWORDS:

Discrete-time Markov chain; IEEE 802.15.6; Reliability and end-to-end delay; Throughput; WBAN

PMID:
27787780
DOI:
10.1007/s10916-016-0638-7
[Indexed for MEDLINE]

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