A Beacon Interval Shifting Scheme for Interference Mitigation in Body Area Networks

Sensors

Seungku Kim¹  Seokhwan Kim¹  Jin-Woo Kim¹ 

[1] Department of Electrical Engineering, Korea University, Seoul 136-713, Korea;

关键词: beacon interval shifting;    body area network;    IEEE 802.15.6;    interference mitigation;   

DOI  :  10.3390/s120810930

来源: mdpi

【 摘 要 】

This paper investigates the issue of interference avoidance in body area networks (BANs). IEEE 802.15 Task Group 6 presented several schemes to reduce such interference, but these schemes are still not proper solutions for BANs. We present a novel distributed TDMA-based beacon interval shifting scheme that reduces interference in the BANs. A design goal of the scheme is to avoid the wakeup period of each BAN coinciding with other networks by employing carrier sensing before a beacon transmission. We analyze the beacon interval shifting scheme and investigate the proper back-off length when the channel is busy. We compare the performance of the proposed scheme with the schemes presented in IEEE 802.15 Task Group 6 using an OMNeT++ simulation. The simulation results show that the proposed scheme has a lower packet loss, energy consumption, and delivery-latency than the schemes of IEEE 802.15 Task Group 6.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.