水声网络协议的跨层设计及其应用研究

项目名称： 水声网络协议的跨层设计及其应用研究

项目编号： No.41276039

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 天文学、地球科学

项目作者： 陶毅

作者单位： 厦门大学

项目金额： 55万元

中文摘要： 网络协议是目前水声网络通信领域研究的关键问题。相对于无线电信号，水声信号的传播时延很大，这使得信道的大量时间处于闲置状态，而传输时又容易发生碰撞，网络的效率亟需提高。本课题提出一种双通道的水声网络跨层模型，可以有效提高系统的资源利用率，提升网络的整体性能，并引入了3种该模型下可用的跨层应用方案，包括：媒体接入控制与网络测距的联合设计；多址接入过程中的网络信息提取，辅助路由表信息更新，优化链路调度；调制、编码方式的自适应。以NI CompactRIO和LabVIEW作为开发平台，实现用于水下组网实验的水声网络节点样机，可进行小型水声网络的组网、测距、通信、转发等功能的各项实验工作。本项目构建4个节点的自组织Ad-hoc网，可覆盖6km×6km区域，最低传输速率达到400bit/s，实现3种跨层应用方案，在厦门海域测试。本项目的实施将为进一步构建分布式海洋环境水声监测网奠定基础。

中文关键词： 水声网络；跨层设计；跨层应用；双通道；网络协议

英文摘要： Underwater Acoustic Networks (UANs) are of growing research interests nowadays. Compared with radio signals,sound signals have a much larger propagation delay, which makes the channel is idle most of the time, while the signal is vulnerable to collisions in the communication time. An urgent need to improve the efficiency of the UANs. This project propose a new dual-channel cross-layer architecture for UANs, which is able to highly promote the overall system performance and the efficiency of resource utilities, and present three kinds of cross-layer applications under this model, based on different optimization objective: Joint Design of MAC & Network Location; Extract the network information in the process of multiple access to the auxiliary routing table update to optimize the link scheduling; Modulation & Coding Self-adaption. A test system prototype built on NI Compact RIO and LabVIEW will be designed and implemented for experiment on networking, location, communication and data forward. The objective of this project is to build four nodes self-organizing ad-hoc network, covering the 6km × 6km region, the minimum transfer rate of up to 400bit/s, and achieve three kinds of cross-layer applications in Xiamen waters. The implementation of this project will lay the foundation for further build Distributed Underwa

英文关键词： underwater acoustic network；cross-layer design；cross-layer applications；dual channel；network protocols