A schedule-based medium access control protocol for mobile wireless sensor networks
A schedule-based medium access control protocol for mobile wireless sensor networks
复制标题
一种基于调度的移动无线传感器网络媒体访问控制协议
DOI：
10.1002/wcm.2220
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
A. Anpalagan
中科院分区：
文献类型：
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作者：
Vincent Ngo;I. Woungang;A. Anpalagan
身体区域网络技术的最新进展，例如射频识别和业余无线电，在当前无线传感器网络技术的使用与一些重要的无线传感器网络应用的特定需求之间引入了巨大的差距，例如医疗保健、救灾或应急准备和响应。在这些类型的应用中，可能会发生节点的移动性，从而导致移动性处理的挑战。在本文中，我们通过将移动节点的传输优先于静态节点来解决这一挑战。这是通过在移动节点的预留时隙中使用较短的竞争窗口来实现的，即所谓的退避技术和一种新的混合媒体接入控制MAC协议，即所谓的通用MAC。该协议提倡基于带宽效率和管理目的的信道重用。通过大量的仿真实验，将该协议与时分多址和IEEE802.11协议中的请求发送/允许发送交换作为基准进行了比较。使用的性能指标包括带宽利用率、介质访问公平性和能耗。在这些度量方面，建立了通用MAC相对于所研究的基准协议的优势。版权所有©2012 John Wiley&Sons，Ltd.
Recent advances in body area network technologies such as radio frequency identification and ham radio, to name a few, have introduced a huge gap between the use of current wireless sensor network technologies and specific needs of some important wireless sensor network applications such as medical care, disaster relief, or emergency preparedness and response. In these types of applications, the mobility of nodes can occur, leading to the challenge of mobility handling. In this paper, we address this challenge by prioritizing transmissions of mobile nodes over static nodes. This is achieved by using shorter contention windows in reservation slots for mobile nodes the so-called backoff technique combined with a novel hybrid medium access control MAC protocol the so-called versatile MAC. The proposed protocol advocates channel reuse for bandwidth efficiency and management purpose. Through extensive simulations, our protocol is compared with other MAC alternatives such as time division multiple access and IEEE 802.11 with request to send/clear to send exchange, chosen as benchmarks. The performance metrics used are bandwidth utilization, fairness of medium access, and energy consumption. The superiority of versatile MAC against the studied benchmark protocols is established with respect to these metrics. Copyright © 2012 John Wiley & Sons, Ltd.