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A beacon interval shifting scheme for interference mitigation in body area networks.

Kim S, Kim S, Kim JW, Eom DS - Sensors (Basel) (2012)

Bottom Line: 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.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.

View Article: PubMed Central - PubMed

Affiliation: Department of Electrical Engineering, Korea University, Seoul 136-713, Korea. kskkck@korea.ac.kr

ABSTRACT
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.

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Channel busy probability according to carrier sensing period.
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f6-sensors-12-10930: Channel busy probability according to carrier sensing period.

Mentions: Figure 6 shows the channel busy probability as the length of the carrier sensing period increases. We assume that the beacon interval is 1.28 s. As we can infer from the previous equations, many BANs and a high duty-cycle lead to a long channel holding time that results in a high probability of the channel being busy. This probability, furthermore, increases as the carrier sensing period, TCS, becomes longer. This is because TBusy becomes longer as TCS increases.


A beacon interval shifting scheme for interference mitigation in body area networks.

Kim S, Kim S, Kim JW, Eom DS - Sensors (Basel) (2012)

Channel busy probability according to carrier sensing period.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3472867&req=5

f6-sensors-12-10930: Channel busy probability according to carrier sensing period.
Mentions: Figure 6 shows the channel busy probability as the length of the carrier sensing period increases. We assume that the beacon interval is 1.28 s. As we can infer from the previous equations, many BANs and a high duty-cycle lead to a long channel holding time that results in a high probability of the channel being busy. This probability, furthermore, increases as the carrier sensing period, TCS, becomes longer. This is because TBusy becomes longer as TCS increases.

Bottom Line: 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.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.

View Article: PubMed Central - PubMed

Affiliation: Department of Electrical Engineering, Korea University, Seoul 136-713, Korea. kskkck@korea.ac.kr

ABSTRACT
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.

Show MeSH
Related in: MedlinePlus