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http://dx.doi.org/10.9708/jksci.2011.16.4.111

A QoS Aware multi-layer MAC(QAML-MAC) Protocol for Wireless Sensor Networks  

Kim, Seong-Cheol (Div. of Computer Science, Sangmyung Univisity)
Park, Hyun-Joo (Div. of Computer Science, Sangmyung Univisity)
Publication Information
Journal of the Korea Society of Computer and Information / v.16, no.4, 2011 , pp. 111-117 More about this Journal
Abstract
In this paper, we propose an QoS aware multi-layer MAC(QAML-MAC) protocol in a wireless sensor networks. Since the proposed protocol is based on the sleep-awake architecture, which save node's energy to prolong the entire network lifetime. For this purpose the QAML-MAC first classifies incoming data according to their transmission urgency and then saves them. The protocol also adapts the cross-layer concept to re-arrange the order of transmission with the same destination. So the delay can be decreased, which can not be obtained with the previous related protocols. And high priority data such as real-time multimedia or critical value in the field monitoring applications can be transmitted quickly, Furthermore the proposed protocol has advantage of decreasing transmitted data collisions using multiple layers of idle listening when there is no high-priority data. So energy consumptions of sensor nodes can be saved and the network lifetime can be prolonged.
Keywords
Wireless Sensor Networks; Quality of Service; MAC;
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