Sensors 2010, 10(10), 9466-9480; doi:10.3390/s101009466
Article

A Schedule-based Multi-channel MAC Protocol for Wireless Sensor Networks

1 Department of Information & Communications Engineering, Hankuk University of Foreign Studies, 89 Wangsan-ri, Mohyun-myon, Cheoin-Gu, Yongin-si, Kyonggi-do, Yongin, 449-791, Korea 2 Department of Industrial & Management Engineering, Hankuk University of Foreign Studies, 89 Wangsan-ri, Mohyun-myon, Cheoin-Gu, Yongin-si, Kyonggi-do, Yongin, 449-791, Korea
* Author to whom correspondence should be addressed.
Received: 10 September 2010; in revised form: 13 October 2010 / Accepted: 14 October 2010 / Published: 21 October 2010
(This article belongs to the Section Physical Sensors)
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Abstract: Due to the half-duplex property of the sensor radio and the broadcast nature of wireless medium, limited bandwidth remains a pressing issue for wireless sensor networks (WSNs). The design of multi-channel MAC protocols has attracted the interest of many researchers as a cost effective solution to meet the higher bandwidth demand for the limited bandwidth in WSN. In this paper, we present a scheduled-based multi-channel MAC protocol to improve network performance. In our protocol, each receiving node selects (schedules) some timeslot(s), in which it may receive data from the intending sender(s). The timeslot selection is done in a conflict free manner, where a node avoids the slots that are already selected by others in its interference range. To minimize the conflicts during timeslot selection, we propose a unique solution by splitting the neighboring nodes into different groups, where nodes of a group may select the slots allocated to that group only. We demonstrate the effectiveness of our approach thorough simulations in terms of performance parameters such as aggregate throughput, packet delivery ratio, end-to-end delay, and energy consumption.
Keywords: wireless sensor networks; medium access control; multi-channel MAC; multi-channel single radio; collision avoidance

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MDPI and ACS Style

Hamid, M.A.; Abdullah-Al-Wadud, M.; Chong, I. A Schedule-based Multi-channel MAC Protocol for Wireless Sensor Networks. Sensors 2010, 10, 9466-9480.

AMA Style

Hamid MA, Abdullah-Al-Wadud M, Chong I. A Schedule-based Multi-channel MAC Protocol for Wireless Sensor Networks. Sensors. 2010; 10(10):9466-9480.

Chicago/Turabian Style

Hamid, Md. Abdul; Abdullah-Al-Wadud, M.; Chong, Ilyoung. 2010. "A Schedule-based Multi-channel MAC Protocol for Wireless Sensor Networks." Sensors 10, no. 10: 9466-9480.

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