数字海洋与水下攻防2026，Vol.9Issue(3)：275-282,8.DOI:10.19838/j.issn.2096-5753.2026.03.005
竞争型MAC协议双径路由冗余传输性能理论分析
Performance Analysis of Dual-Path Routing Redundancy Transmission under Competitive MAC Protocols
摘要
Abstract
To address the issue that existing multipath routing research in underwater acoustic networks(UASNs)is largely confined to the only network-layer analysis of spatial topological characteristics,this paper proposes a cross-layer analytical model for multipath redundancy performance trade-off.This model aims to analytically dissect the trade-off between the concurrent interference cost and the spatial diversity gain induced by multipath redundant transmission.By introducing the"spatial decoupling factor"and the"inter-path collision factor,"the proposed model quantitatively characterizes the spatial coupling features of multipath routing.Combined with the Poisson distribution characteristics of UASN traffic,the dual-path spatial coupling characteristics are mapped to the concurrent traffic increment of the lower channel,and the closed-form analytical expression for the single-hop transmission success rate under contention-based MAC protocols is derived.Furthermore,a joint expectation equation for the end-to-end packet delivery ratio(PDR)of multi-hop dual-path redundant transmission is formulated.Theoretical analysis and simulation results demonstrate that in low-load scenarios,when the spatial diversity gain acquired from inter-path spatial decoupling significantly outweighs the concurrent interference cost of the dual-path mechanism,the end-to-end delivery ratio of multi-hop transmission is substantially improved compared to single-path transmission.关键词
水声传感器网络/MAC协议/路由协议/多径路由/冗余传输Key words
underwater acoustic sensor network/MAC protocol/route protocol/multipath route/redundant transmission分类
信息技术与安全科学引用本文复制引用
黄炜恒,何长树,满晓云,高翔,安良,刘正昂..竞争型MAC协议双径路由冗余传输性能理论分析[J].数字海洋与水下攻防,2026,9(3):275-282,8.基金项目
中央高校基本科研业务费专项资金资助(2242025F20003). （2242025F20003）
