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

Sensors

Muhammad Mostafa Monowar²  Md. Obaidur Rahman²  Choong Seon Hong¹ 

[1] id="af1-sensors-10-09771">Department of Computer Engineering, Kyung Hee University, Seocheon, Giheung, Yongin, South Kor

关键词: multi-constrained QoS;    heterogeneous traffic;    duty cycle MAC;   

DOI  :  10.3390/s101109771

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2010 by the authors; licensee MDPI, Basel, Switzerland.