Traffic-aware adaptive wake-up-interval for preamble sampling MAC protocols of WSN

M. Alam, O. Berder, D. Ménard, O. Sentieys
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引用次数: 8

Abstract

Medium access control MAC layer plays an important role for energy management in wireless sensor network (WSN). In this paper we present an adaptive wake-up-interval scheme for preamble sampling (MAC) protocols for variable traffic in WSN. The wake-up-interval is updated based on the traffic status register (whose contents depend on the presence of messages for a particular node). The proposed algorithm considers dominant effect of recent traffic with regards to the old traffic and also it relies on the occurrence of consecutive data packets. The results show that the sensor node adapts and converges its wake-up-interval to the best trade-off value for fixed and variable traffic patterns. Two optimization parameters (length of traffic status register and initial wake-up-interval value) are also tuned to achieve fast convergence speed for different traffic rates and variations.
基于流量感知的WSN前采样MAC协议自适应唤醒间隔
介质访问控制MAC层在无线传感器网络(WSN)的能量管理中起着重要作用。针对无线传感器网络中可变流量的前置采样(MAC)协议,提出了一种自适应唤醒间隔方案。唤醒间隔是基于流量状态寄存器(其内容依赖于特定节点的消息存在)更新的。该算法考虑了最近流量相对于旧流量的优势效应,并依赖于连续数据包的出现。结果表明,对于固定和可变的流量模式,传感器节点能够自适应并收敛其唤醒间隔至最佳权衡值。对两个优化参数(流量状态寄存器长度和初始唤醒间隔值)也进行了调整,以实现对不同流量速率和变化的快速收敛。
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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