Traffic aware duty cycle adaptation for strobed preamble MAC protocols

Bart Lemmens, K. Steenhaut, Joris Borms, A. Nowé
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引用次数: 1

Abstract

Radio duty cycling is a well-adopted technique deployed in Medium Access Control protocol design for wireless sensor networks that improves energy efficiency. In this paper we address the question of how to select an optimal duty cycle for strobed preamble MAC protocols. We propose and evaluate a distributed algorithm which minimizes the energy consumption of a wireless sensor network through adaptation of the radio duty cycle. Our approach is based on the minimization of the expected energy for the transmission of a message given a certain interarrival time distribution. We deduce generic expressions for the optimal duty cycle configuration independent of the characteristics of the specific interarrival time distribution when the variance of the distribution is large. Furthermore we demonstrate that significant gains in terms of energy consumption can be accomplished with this mechanism.
载波前置MAC协议的流量感知占空比自适应
无线占空比是一种广泛应用于无线传感器网络介质访问控制协议设计的技术,它可以提高能源效率。在本文中,我们讨论了如何选择一个最佳占空比的问题,为频闪前导MAC协议。我们提出并评估了一种分布式算法,该算法通过自适应无线电占空比来最小化无线传感器网络的能量消耗。我们的方法是基于给定一定的到达间隔时间分布的消息传输的期望能量的最小化。当到达间隔时间分布的方差较大时,我们推导出与间隔时间分布特性无关的最优占空比配置的通用表达式。此外,我们证明了在能源消耗方面的显著收益可以通过这种机制来实现。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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