无线传感器网络带宽资源分配与调度研究进展

M. Chitnis, P. Pagano, G. Lipari, Yao Liang
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引用次数: 29

摘要

在无线传感器网络中,带宽资源的分配和调度是一个具有挑战性的问题。本文对这一重要领域的研究现状进行了综述。在纯TDMA或基于TDMA/CSMA的网络中,根据时隙分配考虑带宽保留。我们首先概述了星型网络拓扑中时隙分配的不同方法,然后详细阐述了存在干扰的多跳无线通信网络中的时隙分配和调度问题。由于多跳无线网络中的问题被证明是np完全的,现有的解决方案大多采用不同的启发式方法来解决该问题。我们讨论了这些启发式和算法及其在无线传感器网络中的影响。最后,在无线传感器网络中广泛使用的IEEE 802.15.4通信协议的背景下,我们给出了一些优点、局限性和可能的扩展。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A Survey on Bandwidth Resource Allocation and Scheduling in Wireless Sensor Networks
Bandwidth resource allocation and scheduling has posed a challenging problem in wireless sensor networks. This paper provides a survey on the current state-of-the-art researches in this important area. Bandwidth reservation is considered in terms of time slot allocation in a pure TDMA or TDMA/CSMA based networks. We first overview different approaches for time slot allocation in a star network topology, and then elaborate the problem of time slot allocation and scheduling in a multihop wireless communication network in the presence of interference. Since the problem in multihop wireless network is proved to be NP-complete, most of the exiting solutions use different heuristics to resolve this problem. We address some of these heuristics and algorithms and their impact in wireless sensor networks. Finally, we provide some of the advantages, limitations and possible extensions in the context of IEEE 802.15.4 communications protocol which is being widely used for wireless sensor networks.
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