基于能量与节点缓冲区的机会路由研究

Energy and Buffer Opportunistic Routing

无线传感器网络作为一种新型的信息获取系统,因为具有自组织性、灵活性和低成本等特点,可以被广泛应用到军事领域、环境科学、医疗健康等各个方面,是近年来研究的热点。路由技术是无线传感器网络的关键技术之一。网络生命周期和吞吐量是衡量无线传感网络性能的重要指标。本文主要针对无线传感器网络中的机会路由协议,基于地理位置策略,综合考虑节点中能量与节点缓存因素。设计了一种具有能量自我保护,改善网络中节点能量均衡性,延长网络生命周期,提高网络吞吐量的机会路由协议(EBOR:Energy and Buffer Opportunistic Routing)。仿真实验表明,相比传统机会路由,本文提出的EBOR具有更优的网络生命周期与吞吐量。

As a new information acquisition system, wireless sensor networks（WSNs）, is a hot research direction in recent years. WSNs have some features, such as self-organization, flexibility and low-cost, which can be widely applied to various aspects of the military field, environmental science, health care, etc. Routing technology is one of the key technologies of WSNs. Survivability and Throughput are crucial to the commercial value of Wireless Sensor Networks. In order to keep a balance between the network life span and network performance, the proposed dynamic routing protocol named Energy and Buffer Opportunistic Routing（EBOR） follows opportunistic routing approaches while adding energy aware and buffer aware part into the next node selection criterion. Simulation results shows a significant increase in network lifespan and throughput compared with Ge OR routing.