Investigation and Implementation of Border Nodes in S-MAC

E. Shakshuki, T. Sheltami, H. Malik, Chuoxian Yang
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引用次数: 7

Abstract

Wireless sensor networks are destined to see widespread adoption in such diverse sectors as industrial process control, health care, and home automation. A WSN is normally constructed from large numbers of low-power, inexpensive sensor devices that are densely embedded in the physical environment, operating together in a wireless network. Being energy constrained, the network environment requires a communication protocol to maximize the lifetime of each node in WSN. Sensor-Medium Access Control (S-MAC) is a contention-based protocol designed specifically for WSN. It’s operational principle is based on a periodic cycle, in which nodes take turns to sleep and wake-up to listen for awhile. The focus of this paper is to investigate and implement border nodes, or gateways in S MAC, using network simulator-2 (ns-2). Border nodes have been previously defined, however, the life cycle of border nodes has not, nor have they been implemented and tested under a simulation package such as ns-2. We introduce the birth and death of border nodes in the implementation of S-MAC. Our simulation results demonstrate that, with border nodes implementation, the network latency is increased at the cost of prolonged network life.
S-MAC中边界节点的研究与实现
无线传感器网络注定会在工业过程控制、医疗保健和家庭自动化等不同领域得到广泛采用。WSN通常由大量低功耗、廉价的传感器设备构成,这些传感器设备密集地嵌入在物理环境中,在无线网络中一起工作。由于网络环境的能量限制,需要一种通信协议来最大化WSN中每个节点的生存期。传感器介质访问控制(S-MAC)是专门为WSN设计的一种基于争用的协议。它的操作原理基于周期性循环,其中节点轮流睡眠和唤醒以收听一段时间。本文的重点是使用网络模拟器-2 (ns-2)来研究和实现边界节点或S MAC中的网关。边界节点以前已经定义,但是,边界节点的生命周期没有定义,也没有在ns-2等模拟包下实现和测试。介绍了S-MAC实现中边界节点的出生和死亡。仿真结果表明,边界节点的实现以延长网络寿命为代价,增加了网络延迟。
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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