生物友好的认知水声网络路由协议  

A Routing Protocol of Underwater Cognitive Acoustic Networks for Marine Mammals

作　　者：金志刚[1] 王健[1] 苏毅珊[1] 

机构地区：[1]天津大学电气自动化与信息工程学院,天津300072

出　　处：《西安交通大学学报》2017年第2期33-39,共7页Journal of Xi'an Jiaotong University

基　　金：国家自然科学基金资助项目(61571318);青海省自然科学基金重点资助项目(2015-ZJ-904);海南省重点研发计划资助项目(ZDYF2016153)

摘　　要：针对海洋生物与传感器节点共用水声信道、生物占用信道使传统水下路由机制失效的问题,提出了水声网络跨层认知决策机制,设计了生物友好的认知水声网络路由协议。该协议将海洋生物作为主用户,确定生物-节点干扰区域,支持信号定向发送并且采用绕路策略避免对海洋生物的干扰。实验结果表明,与经典的矢量转发路由、多跳矢量转发路由等水下路由协议相比,新协议下的数据包投递率分别提高了52.6%和22.5%,节点的能量消耗分别降低了40.4%和56.8%,端到端的延时性能有了较大改善,解决了传统路由机制中仅通过传感器节点间的优化实现最短路由路径而没有考虑生物使建立的路由路径失效的问题。A novel cross-layer cognitive decision mechanism and a related mammal-friendly detour routing protocol for underwater cognitive acoustic networks are proposed to overcome the interference among the marine mammals and the manmade acoustic system, which share the limited acoustic spectrum in ocean. The mammals are considered as the primary user and the interference region of mammals-nodes is determined. The routing protocol is designed to avoid the interference between the sensor nodes and the mammals. Simulation results and comparisons with the existing VBF and HHVBF routing protocols show that the proposed routing protocol increases the packet delivery ratio by 52.6% and 22.5% and reduces the energy consumption of a data packet by 40.4% and 56.8%, respectively. These results indicate that this scheme overcomes the routing failure problem caused by marine mammals＇ interference.

关 键 词：水声网络 跨层认知 绕路策略 生物友好 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]