Queen-MAC: A quorum-based energy-efficient medium access control protocol for wireless sensor networks
- 作者：GholamHossein Ekbatanifard ; ekbatanifard@stu-mail.um.ac.ir ; [Author Vitae] ; Reza Monsefi ; [Author Vitae] ; Mohammad H. Yaghmaee M. ; [Author Vitae] ; Seyed Amin Hosseini S. ; [Author Vitae]
- 关键词：Wireless Sensor Networks (WSNs) ; Medium Access Control (MAC) ; Data collection ; Dyadic grid quorum systems (dygrid) ; Energy-efficient
- 刊名：Computer Networks
- 出版年：2012
- 期刊代码：28_13891286
- 类别：cp
- 出版时间：24 May, 2012
- 卷：56
- 期：8
- 页码：2221-2236
- 文件大小：2062 K
摘要
Major problems in the Medium Access Control (MAC) of Wireless Sensor Networks (WSNs) are: sleep/wake-up scheduling and its overhead, idle listening, collision, and the energy used for retransmission of collided packets. This paper focuses on these problems and proposes an adaptive quorum-based MAC protocol, Queen-MAC. This protocol independently and adaptively schedules nodes wake-up times, decreases idle listening and collisions, increases network throughput, and extends network lifetime. Queen-MAC is highly suitable for data collection applications. A new quorum system, dygrid is proposed that can provide a low duty cycle, , for adjusting wake-up times of sensor nodes. Theoretical analysis demonstrates the feasibility of dygrid and its superiority over two commonly used quorum systems (i.e., grid and e-torus). A lightweight channel assignment method is also proposed to reduce collision and make concurrent transmissions possible. Simulation results indicate that Queen-MAC prolongs the network lifetime while increasing the average delivery ratio and keeping the transmission latency low.