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Sensors 2010, 10(11), 9771-9798; doi:10.3390/s101109771

MQ-MAC: A Multi-Constrained QoS-Aware Duty Cycle MAC for Heterogeneous Traffic in Wireless Sensor Networks

Department of Computer Engineering, Kyung Hee University, Seocheon, Giheung, Yongin, South Korea
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Received: 17 September 2010 / Revised: 8 October 2010 / Accepted: 15 October 2010 / Published: 1 November 2010
(This article belongs to the Section Physical Sensors)
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Abstract

Energy conservation is one of the striking research issues now-a-days for power constrained wireless sensor networks (WSNs) and hence, several duty-cycle based MAC protocols have been devised for WSNs in the last few years. However, assimilation of diverse applications with different QoS requirements (i.e., delay and reliability) within the same network also necessitates in devising a generic duty-cycle based MAC protocol that can achieve both the delay and reliability guarantee, termed as multi-constrained QoS, while preserving the energy efficiency. To address this, in this paper, we propose a Multi-constrained QoS-aware duty-cycle MAC for heterogeneous traffic in WSNs (MQ-MAC). MQ-MAC classifies the traffic based on their multi-constrained QoS demands. Through extensive simulation using ns-2 we evaluate the performance of MQ-MAC. MQ-MAC provides the desired delay and reliability guarantee according to the nature of the traffic classes as well as achieves energy efficiency.
Keywords: multi-constrained QoS; heterogeneous traffic; duty cycle MAC multi-constrained QoS; heterogeneous traffic; duty cycle MAC
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Monowar, M.M.; Rahman, M.O.; Hong, C.S.; Lee, S. MQ-MAC: A Multi-Constrained QoS-Aware Duty Cycle MAC for Heterogeneous Traffic in Wireless Sensor Networks. Sensors 2010, 10, 9771-9798.

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