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Highly Efficient / High Quality Multimedia Delivery Techniques over Multi-Hop Wireless Networks

多跳无线网络上的高效/高质量多媒体传输技术

基本信息

批准号：
17560353
负责人：
KATTO Jiro
金额：
$ 2.18万
依托单位：
Waseda University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2005
资助国家：
日本
起止时间：
2005 至 2006
项目状态：
已结题

项目摘要

In the first year, we firstly carried out performance evaluation by simulations and software implementations on notebook Linux PC about the multipath routing protocol for multi-hop wireless networks. Then, we built actual multi-hop wireless network testbed using multiple notebook PCs, and executed video delivery experiments in campus. Details are:(1)Simulation evaluations of the multipath routing method, that switches delivery routes adaptively according to wireless channel characteristics,(2)Simulation evaluations of the multipath routing method, that justifies wireless channel characteristics by using receiving powers of delivery routes,(3)Implementation and modification of KernelAODV, that is an open source multihop routing protocol operating on Linux, and(4)Implementation experiments of video content delivery over multi-hop wireless network built by multiple notebook PCs.In the second year, we published a paper, made some presentations at domestic conferences and continued evaluations about the multipath routing protocol for multi-hop wireless networks. Details are(1)Publication of a paper on the proposed multipath routing method and its application to multimedia content delivery,(2)Implementation evaluations of multi-hop video content delivery using H.264/AVC instead of H.263+,(3)Simulation evaluations of the multi-hop wireless network, that emulates actual implementation environment, and(4)Primitive prototype implementations of a visual sensing system, as an application of the proposed multipath routing protocol and video content delivery techniques.

在第一年，我们首先在笔记本Linux PC上对多跳无线网络的多路径路由协议进行了仿真和软件实现的性能评估。在此基础上，利用多台笔记本电脑搭建了实际的多跳无线网络实验平台，并在校园内进行了视频传输实验。具体内容为：（1）根据无线信道特性自适应地切换传输路径的多路径路由方法的模拟评价（2）利用传输路径的接收功率来判断无线信道特性的多路径路由方法的模拟评价（3）在Linux上运行的开源多跳路由协议KernelAODV的实现和修改（4）在多台笔记本电脑构建的多跳无线网络上进行视频内容传输的实现实验。第二年，发表了论文，在国内会议上进行了演讲，继续进行了多跳无线网络的多路径路由协议的评价。细节是（1）关于所提出的多路径路由方法及其在多媒体内容递送中的应用的论文的出版物，（2）使用H.264/AVC而不是H.263+的多跳视频内容递送的实现评估，（3）多跳无线网络的仿真评估，其仿真实际实现环境，以及（4）视觉感测系统的原始原型实现，作为所提出的多路径路由协议和视频内容传送技术的应用。