Ad Hoc网络中的视频传输方法与技术综述<br>Overview of Video Transmission Methods and Techniques in Ad Hoc Networks

Abstract

Ad Hoc网络由于拓扑变化以及节点的移动导致路径经常性中断，使得Ad Hoc网络信道误码率和传输丢包率高，这给视频传输带来了新的挑战。因此，研究适合Ad Hoc网络的视频编码和传输方法成为了当今一大热点。在结合Ad Hoc网络传输特性的基础上，从视频编码、传输和接收端同时入手，对目前Ad Hoc网络视频传输的研究现状和主要方法进行了系统的论述，并对适合Ad Hoc网络传输视频的新机制及其关键技术进行了展望。 Topology change and nodes move in Ad Hoc networks leads to regular interruption of the path, making Ad Hoc network channel bit error rate and transmission packet loss rate very high .This brings a new challenge for video transmission. As a result, research on video coding and transmission methods that suitable for Ad Hoc networks has become a hot spot today. On the basis of transmission characteristics of Ad Hoc networks, it starts with video encoding, video transmission and the receiver all together, gives a systematic introduction to the current research status and main methods of video transmission in Ad Hoc networks, moreover forecasts the future of the key technologies and new mechanisms which are suitable for video transmission in Ad Hoc networks.