基于网络编码的可靠FBR水下无线传感网路由协议

A reliable focused beam routing protocol with network coding for underwater sensor network

随着无线传感器网络的发展及应用和世界各国海洋开发步伐的加快,国内外对于水下通信和水下传感器网络（UWSNs）日益重视,并已取得显著成果。然而水下通信存在着低带宽、高延迟、低传输率、高干扰以及高能耗等特征,使得水下传感器网络的设计面临巨大挑战。针对聚焦光束路由（FBR）协议的传输率问题,提出了基于网络编码的可靠FBR路由协议（FBR-NC）。通过控制节点的发送功率来调节节点的通信范围,使节点通信范围的下一跳转发节点的冗余度达到网络编码的要求。仿真结果表明,所提出的协议在数据包传输率性能上优于FBR路由协议,同时不会带来过多的能耗和延迟。

With the development and application of wireless sensor networks and the acceleration of marine development in various countries,there is a growing emphasis on underwater communications and underwater sensor networks（UWSNs）both at home and abroad,and it has made notable achievements.However,underwater communication has the characteristics of low bandwidth,high delay,low transmission rate,high interference and high energy consumption,which makes the design of underwater sensor network face a significant challenge.In view of the transmission rate of FBR protocol,this paper proposes a reliable focused beam routing protocol with network coding（FBR-NC）for underwater sensor network.By controlling the sending power of the node to adjust the communication range of the node,and then make redundancy of the next-hop node to reach the requirement of network coding.Simulation results show that the proposed protocol is superior to FBR protocol in terms of packet delivery rate.We also show that the FBR-NC will not bring much energy consumption and extra delay.