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A Detailed Review of Multi-Channel Medium Access Control Protocols for Wireless Sensor Networks

机译:无线传感器网络的多通道媒体访问控制协议的详细审查

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摘要

Most applications of Wireless Sensor Networks (WSNs) assume the presence of single-channel Medium Access Control (MAC) protocols. In the usual dense deployment of the sensor networks, single-channel MAC protocols may be deficient because of radio collisions and limited bandwidth. Hence, using multiple channels can significantly improve the performance of WSN. Recent developments in sensor technology, as seen in Crossbow's MICAz Mote, Rockwell's WINS nodes and IEEE 802.15.4 Zigbee, have enabled support for multi-channel communications. Several multi-channel MAC protocols with different objectives have been proposed for WSNs in literature. This paper surveys and classifies the state-of-the-art multi-channel MAC protocols that are proposed for WSNs. It first outlines the sensor network properties that are crucial for designing a MAC protocol. It subsequently reviews the existent challenges to design a good multichannel MAC protocol for the sensor networks. Then, several multi-channel MAC protocols specifically proposed for the WSNs are inspected in detail and compared with each other. Finally, some open issues in this area are outlined for future research.
机译:无线传感器网络(WSN)的大多数应用都假定存在单通道媒体访问控制(MAC)协议。在传感器网络的通常密集部署中,由于无线冲突和带宽有限,单通道MAC协议可能会不足。因此,使用多个信道可以显着提高WSN的性能。 Crossbow的MICAz Mote,Rockwell的WINS节点和IEEE 802.15.4 Zigbee等传感器技术的最新发展已经实现了对多通道通信的支持。文献中已经为WSN提出了几种具有不同目标的多通道MAC协议。本文对为无线传感器网络提出的最新的多通道MAC协议进行了调查和分类。首先概述了对于设计MAC协议至关重要的传感器网络属性。随后,它回顾了为传感器网络设计好的多通道MAC协议所面临的挑战。然后,详细检查了几种专门为WSN提出的多通道MAC协议,并将它们相互比较。最后,概述了该领域中的一些未解决问题,以供将来研究。

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