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A beacon interval shifting scheme for interference mitigation in body area networks
Seungku Kim1, Seokhwan Kim, Jin-Woo Kim
1Department of Electrical Engineering, Korea University, Seoul 136-713, Korea. kskkck@korea.ac.kr
Sensors (Basel, Switzerland)
|November 1, 2012
Summary
This study introduces a novel beacon interval shifting scheme to reduce interference in body area networks (BANs). The new method improves packet loss, energy use, and delivery latency compared to existing IEEE 802.15 standards.
Area of Science:
- Wireless communication networks
- Biomedical engineering
- Signal processing
Background:
- Body Area Networks (BANs) face significant interference challenges.
- Existing IEEE 802.15 Task Group 6 schemes are insufficient for effective interference avoidance in BANs.
Purpose of the Study:
- To propose a novel distributed Time Division Multiple Access (TDMA)-based beacon interval shifting scheme for interference reduction in BANs.
- To enhance the reliability and efficiency of BAN communications.
Main Methods:
- A distributed TDMA-based beacon interval shifting scheme is presented.
- Carrier sensing is employed before beacon transmission to avoid network overlap.
- Back-off length is analyzed for busy channel conditions.
- Performance is evaluated using OMNeT++ simulations.
Main Results:
- The proposed scheme effectively reduces interference by avoiding coinciding wakeup periods.
- Simulation results demonstrate lower packet loss compared to IEEE 802.15 Task Group 6 schemes.
- The novel scheme shows reduced energy consumption and delivery latency.
Conclusions:
- The developed beacon interval shifting scheme offers a superior solution for interference avoidance in BANs.
- This approach enhances the overall performance of body area networks.
- Further investigation into back-off length optimization is warranted.
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