水下声信道多跳无线局域网的协同传输

Facing the major national needs for the marine environment monitoring, marine resource development and protection of the rights and interests, The project proposed a collaborative access and relay mode using nodes have been accessed, to construct Underwater acoustic Multi-hop Wireless Local Area Network (UM-WLAN), it can greatly expand network access capacity, network coverage and access flexibility for seafloor monitoring networks. The cooperative Access, cooperative transmission, and adaptive handoff problems of UM-WLAN will be studied in the project. We will focus on the research of multi hop cooperative access strategy, media access control protocol, multi hop cooperative relay method, network analysis modeling, and the adaptive handover method between sub-networks. Through the study on the project, we will establish an UM-WLAN construction method; propose a multi hop cooperative access strategy and a media access control protocol; propose a UM-WLAN analyzing model, network performance prediction method, and a multi hop cooperative relay method; design an adaptive network handoff mechanism; solve the quickly channel scan and address assignment problem; and build an application oriented experimental system for the system verification. The proposal aims to realize the network connections and the efficient information transmission in underwater multi-hop wireless networks, and to provide the basis theory and technology for the application of underwater wireless networks.

项目面向海洋环境监测、海洋资源开发和海洋权益保护国家重大需求，提出利用接入节点进行协同接入和协同中继，以构建水声信道多跳无线局域网，可极大地扩展海底观测网的接入能力、覆盖范围和接入的灵活性。项目将针对水下声信道多跳无线局域网的协同接入、协同传输和自适应开展基础研究工作，重点研究多跳协同接入策略和媒体介入控制协议、多跳协同中继方法及中继网络性能建模分析、网间自适应漫游切换方法。通过研究，建立水声信道多跳无线局域网构建方法，提出多跳协同接入策略和媒体介接入控制协议，提出水声信道无线局域网的分析模型、网络性能预测及多跳协同中继方法，设计面向移动节点接入的自适应网络切换机制，解决信道快速扫描和地址分配等问题，并通过构建面向应用的实验系统进行验证。以实现水下无线网络的多跳连接和高效信息传输，为水下无线网络的技术应用提供理论技术和方法依据。

面向海洋环境监测、海洋资源开发和海洋权益保护的国家重大需求，本项目提出利用接入节点进行协同接入和协同中继，构建水声信道多跳无线局域网(Underwater acoustic Multi-hop Wireless Local Area Networks,以下简称UM-WLAN)，极大地扩展了海底观测网的接入能力、覆盖范围和接入灵活性。针对水下声信道多跳无线局域网的协同接入、协同传输和自适应等关键问题，本项目研究了水声信道多跳无线局域网的构建方法，提出了多跳协同接入策略和媒体接入控制协议，通过对水声信道无线局域网的分析与网络性能预测，研究了多跳协同中继方法，并设计了面向移动节点接入的自适应网络切换机制，有效解决了信道快速扫描与地址分配等问题。同时，项目构建了面向应用的水声无线局域网络实验系统，对所提出的技术方法进行测试与验证。