基于模糊逻辑的水下光传感器网络机会式路由协议
Opportunistic Routing Protocol for Underwater Optical Sensor Networks Based on Fuzzy Logic
沈睿 1郝继强 2付东民 2杨明 2韩硕 1岳鹏 1孙诚2
作者信息
- 1. 西安电子科技大学 通信工程学院,陕西 西安,710071
- 2. 黑龙江省公安厅 科技信息化总队,黑龙江 哈尔滨,150008
- 折叠
摘要
水下无线光传感器网络相比传统声传感器网络具有高带宽、低时延等显著优势,是实现水空跨域通信中水下数据高速实时传输的研究热点.但由于水下光节点的传输易受阻挡且节点需要指向对准等问题,传统水下传感器网络路由协议不可避免地会出现路由空洞和冗余数据传输情况.针对上述问题,文中提出了一种基于模糊逻辑的水下无线光传感器网络机会式路由协议.首先,提出基于模糊逻辑系统的水下光信道链路评价算法,结合水下复杂通信环境建模,设计了路由度量指标的多因素融合评估;然后,基于实时链路评估数据设计节点,数据转发概率和数据包保持时间的动态设定机制;最后,提出基于概率性的冗余抑制转发算法.仿真结果表明,在典型海洋通信环境下,所提路由协议可有效提高传输效率及减少端到端时延,具有良好的网络动态适应性.
Abstract
Underwater optical sensor networks offer significant advantages over traditional acoustic sensor networks,such as high bandwidth and low latency,making them a research hotspot to realize high-speed and real-time transmission of underwater data in sea-air cross-domain communication.However,traditional routing protocols for underwater sensor networks often encounter problems such as routing holes and redundant data transmission due to the transmission obstruction and directional alignment of underwater optical nodes.To address these issues,a fuzzy logic-based opportunistic routing protocol for underwater optical sensor networks was proposed.Firstly,a fuzzy logic-based algorithm was proposed to evaluate the underwater optical channel links.Combined with the modeling of an underwater complex communication environment,the multi-factor fusion evaluation of routing metrics was designed.Additionally,a dynamic mechanism was designed to set the node data forwarding probability and data packet retention time based on real-time link evaluation data.Finally,a probabilistic redundant suppression forwarding algorithm was proposed.Simulation results demonstrate that the proposed routing protocol effectively improves transmission efficiency and reduces end-to-end latency in typical marine communication environments,exhibiting good network dynamic adaptability.
关键词
跨域通信/水下无线光传感器网络/机会式路由协议/模糊逻辑Key words
cross-domain communication/underwater wireless optical sensor network/opportunistic routing protocol/fuzzy logic引用本文复制引用
基金项目
国家重点研究项目(2022YFC3330800)
出版年
2024
国家科技期刊平台
NSTL
万方数据