自适应动态功率控制的机会网络节能高效路由算法

发布时间：2018-03-25 12:45

本文选题：机会网络　切入点：路由算法　出处：《西安交通大学学报》2014年12期

【摘要】：针对机会网络中基于跨层设计的能量高效路由算法(ERBC)存在的未考虑节点运动、部分数据消息传输时能耗偏大、矢量消息交换过程有冗余控制开销的问题,提出一种自适应动态功率控制的节能路由算法(ERAPC)加以解决。ERAPC算法通过拓展确认字符(ACK)帧的使用改进了基于接收信号强度指示值(RSSI)的节点测距机制,将功率控制的范围从部分数据消息扩展到全部,以减少节点能耗;通过等待收发节点尽可能靠近后才传送数据,进一步减小节点能量消耗;通过提出一种更简捷的矢量消息交换新机制,减少网络控制开销。仿真结果表明,与ERBC算法相比,ERAPC算法的比特能耗至少降低了27.27%,控制开销则减小了11.87%以上。
[Abstract]:In order to solve the problem of energy efficient routing algorithm based on cross-layer design in opportunistic networks, which does not take into account the node movement, the energy consumption of some data message transmission is too large, and there is redundant control overhead in the process of vector message exchange, the problem of the energy efficient routing algorithm based on cross-layer design in the opportunity network is discussed. An energy saving routing algorithm based on adaptive dynamic power control (ERAPC) is proposed to solve the problem. ERAPC improves the node ranging mechanism based on the received signal strength indication value (RSSI) by using the extended confirmation character (ACK) frame. The range of power control is extended from partial data messages to all to reduce the energy consumption of the nodes, and the energy consumption of the nodes is further reduced by waiting for the receiving and sending nodes to transmit data as close as possible. A new vector message exchange mechanism is proposed to reduce the network control overhead. The simulation results show that compared with the ERBC algorithm, the bit energy consumption of the ERAPC algorithm is reduced by at least 27.27%, and the control overhead is reduced by more than 11.87%.
【作者单位】：重庆邮电大学移动通信技术重庆市重点实验室;
【基金】：国家自然科学基金资助项目(61379159) 教育部长江学者和创新团队发展计划资助项目(IRT1299) 重庆市自然科学基金资助项目(cstc2012jjA40051)
【分类号】：TN929.5

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