Saturday 25th of November 2017
 

A QoS-aware MAC protocol for Wireless Sensor Networks


Guoqiang Zheng, Yaru Sun, Bingwu Kang, Huahong Ma, Jishun Li and Yuting Wang

Considering traditional MAC protocols for Wireless Sensor Networks cannot provide service differentiation for different traffic classes, we propose a Self-adaption QoS-aware MAC protocol (SQ-MAC). The protocol can provide collision-free time slots for nodes, and take different contention window size for different traffic classes. It can also introduce virtual multi-queue and relatively fair scheduling mechanism for data packets. Simulation results show that, compared with the low priority traffic, the transmission quality of high priority traffic is effectively improved, in terms of packet delivery ratio, latency and so on. Additionally, compared with S-MAC and DQ-MAC, SQ-MAC also maintains a good network performance.

Keywords: Wireless Sensor Networks, service differentiation, QoS-aware MAC.

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ABOUT THE AUTHORS

Guoqiang Zheng
Received the Ph.D. degree in Communication and information systems professional from Xi’an Jiaotong University, China, 2008. He is a professor at Henan University of Science and Technology on College of Electronic Information Engineering, China. His research interests include wireless communication technology, network communication protocol and software radio theory.

Yaru Sun
Received the B.S. degree in Henan University of Science and Technology, Luoyang, China in 2014. She is currently working towards M.S. degree in Henan University of Science and Technology, Luoyang, China. Her research interests include WSNs and MAC Protocol.

Bingwu Kang
Received the B.S. degree in Luoyang Normal University, Luoyang, China in 2013. And received the M.S. degree in Henan University of Science and Technology, Luoyang, China in 2016.

Huahong Ma
Received her master degree in Signal and Information Processing in July 2005 at Yunnan University, China. Now, she is a Ph.D. candidate in Control Science and Engineering at Henan University of Science and Technology. Her main research interests are Crowd Sensing Network and Internet of Things.

Jishun Li
Received the Ph.D. degree in Mechanical Manufacture and Automation from Shanghai Jiaotong University, China, 1996. He is a professor at Henan University of Science and Technology on College of Mechatronics Engineering, China.

Yuting Wang
Received the B.S. degree in Henan University of Science and Technology, Luoyang, China in 2015. She is currently working towards M.S. degree in Henan University of Science and Technology, Luoyang, China.


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