摘要
不同于陆地物联网应用,海洋物联网应用往往需要解决水面网络与水下网络之间的信息交互问题,合理的路由方案是解决上述问题的关键。因此,提出了一种基于位置信息和能量均衡的声电协同网络自组织按需距离向量路由协议(AR-AODV, ad hoc on-demand distance vector for acoustic-radio integrated network),旨在引导信息流更多地通过水面无线电链路进行转发,从而减轻水下通信网的负担,提升网络的整体性能。在该协议中,浮标节点的转发优先级高于水下节点。当源节点需要发送数据时,它进入路由发现阶段,节点以自身的位置和能量信息作为启发式信息,用于计算转发概率并广播路由请求(RREQ, route request)报文进行寻路。当目的节点收到RREQ报文时,发送RREP报文进行信息素更新,依据信息素的大小选择最优的路径。与AODV相比,AR-AODV在传输成功率、传输时延、吞吐量、能量转化率、寻路包转发次数方面的性能有显著提升。
Different from terrestrial internet of things(IoT) applications, marine IoT applications need to solve the problem of information interaction between surface network and underwater network. The key to solve this problem is to design a proper routing scheme. An ad hoc on-demand distance vector for acoustic-radio integrated network(AR-AODV)was proposed based on location information and energy balance. The protocol enables surface radio links to forward more information data, so as to reduce the burden of underwater communication network and improve the overall performance. In the proposed protocol, the forwarding priority of the buoy nodes was higher than that of the underwater nodes. When the source node needs to send data, it enters the route discovery phase, i.e., the node uses its position and energy information as the heuristic information to calculate the forwarding probability and broadcast route request(RREQ) packets. When the destination node receives an RREQ packet, it sent an RREP packet to update the pheromone and select the optimal path based on the pheromone. Compared with AODV protocol, AR-AODV protocol has significantly improved the performance in terms of transmission success rate, transmission delay, throughput, energy conversion rate and routing packet forwarding times.
作者
卫浓钰
江子龙
陈芳炯
WEI Nongyu;JIANG Zilong;CHEN Fangjiong(School of Electronic and Information Engineering,South China University of Technology,Guangzhou 510641,China;Key Laboratory of Marine Environmental Survey Technology and Application,Ministry of Natural Resources,Guangzhou 510641,China)
出处
《物联网学报》
2023年第1期27-36,共10页
Chinese Journal on Internet of Things
基金
国家自然科学基金资助项目(No.62192711)。
关键词
海洋物联网
跨域通信
路由协议
位置信息
能量均衡
marine IoT
cross-domain communication
routing protocol
location information
energy balance
