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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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Average end-to-end delivery-latency according to the number of BANs.
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f16-sensors-12-10930: Average end-to-end delivery-latency according to the number of BANs.

Mentions: Figure 16 displays the average end-to-end delivery-latency according to the number of BANs. When only one BAN exists, the mobile case gives almost the same result as shown in Figure 12, since interference does not exist. As the number of BANs increases, the average end-to-end delivery-latency increases like the stationary case. However, a slope of the schemes indicates gentler than the stationary case because of less interference in the mobile case. The beacon interval shifting scheme shows low average end-to-end delivery-latency because it experiences less interference. The beacon shifting scheme still presents a higher average end-to-end delivery-latency due to its variable beacon intervals.


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

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

Average end-to-end delivery-latency according to the number of BANs.
© Copyright Policy
Related In: Results  -  Collection

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

f16-sensors-12-10930: Average end-to-end delivery-latency according to the number of BANs.
Mentions: Figure 16 displays the average end-to-end delivery-latency according to the number of BANs. When only one BAN exists, the mobile case gives almost the same result as shown in Figure 12, since interference does not exist. As the number of BANs increases, the average end-to-end delivery-latency increases like the stationary case. However, a slope of the schemes indicates gentler than the stationary case because of less interference in the mobile case. The beacon interval shifting scheme shows low average end-to-end delivery-latency because it experiences less interference. The beacon shifting scheme still presents a higher average end-to-end delivery-latency due to its variable beacon intervals.

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