Comparison Between Energy Efficient Cooperative MIMO and Cooperative Relay in Energy Constrained WSN

M. Sharma
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Abstract

Wireless sensor network consists of thousand number of sensor nodes employed in a wide range of data gathering application such as environmental gathering, military applications etc. Each sensor node in WSN are powered by battery having limited energy so it is very difficult to replace there batteries for prolonged the network life time. Maximizing the network lifetime have been most important design goal for the network. In WSN channel fading and radio interference constitute a big dispute in design of energy efficient communication protocol. To reduce fading and energy consumption in WSN, MIMO MISO SISO scheme is employed but implement multiple antenna technology to sensor network is improbable because of the sensor node generally support a single antenna. Cooperative scheme are utilized in WSN by applying the collective nature of the sensor nodes to provide reliable communication links in order to lower the total energy consumption. In this paper, the cooperative technique are inspected and by comparing different cooperative techniques we can elect the best cooperative scheme for energy constrained WS N application.
能量约束WSN中高效协同MIMO与协同中继的比较
无线传感器网络由数千个传感器节点组成,用于广泛的数据采集应用,如环境采集、军事应用等。在无线传感器网络中,每个传感器节点都由电池供电,电池的能量有限,因此更换电池对延长网络寿命非常困难。网络生命周期的最大化一直是网络最重要的设计目标。在无线传感器网络中,信道衰落和无线电干扰是设计节能通信协议的一大难题。为了减少无线传感器网络中的衰落和能量消耗,采用了MIMO MISO SISO方案,但由于传感器节点通常支持单天线,因此在传感器网络中实现多天线技术是不可能的。在无线传感器网络中,利用传感器节点的集体性提供可靠的通信链路,以降低总能耗。本文对协作技术进行了研究,并通过比较不同的协作技术,选出了能量受限的wsn应用的最佳协作方案。
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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