生物友好的认知水声网络路由协议

发布时间：2018-01-14 07:38

本文关键词：生物友好的认知水声网络路由协议　出处：《西安交通大学学报》2017年02期 　论文类型：期刊论文

【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。
[Abstract]:Aiming at the problem that marine organisms share underwater acoustic channels with sensor nodes and biological occupation channels invalidate traditional underwater routing mechanisms, a cross-layer cognitive decision-making mechanism for underwater acoustic networks is proposed. A biological friendly routing protocol for cognitive underwater acoustic networks is designed, which takes marine life as the primary user to determine the biological node interference area. The experimental results show that it is compared with the classical underwater routing protocols such as vector forwarding routing, multi-hop vector forwarding routing and so on. Under the new protocol, the packet delivery rate is increased by 52.6% and 22.5respectively, the energy consumption of the node is reduced by 40.4% and 56.8respectively, and the end-to-end delay performance is greatly improved. It solves the problem that the shortest routing path is realized only by optimizing the sensor nodes in the traditional routing mechanism without considering the biological failure of the established routing path.
【作者单位】：天津大学电气自动化与信息工程学院;
【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)
【分类号】：TN929.3;TP212.9
【正文快照】： 在众多新兴的海洋科技领域中,水声传感器网络(underwater acoustic sensor networks,UASN)在水下资源勘探、灾难预防等方面的应用受到了研究者日益广泛的关注[1-2]。然而,水下通信环境极其恶劣,水声信道具有传播时延长、带宽低、时空不确定的特点[3],这些特点给几乎所有的水下

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