AdHoc网络中的视频传输方法与技术综述.PDF

Hans Journal of Wireless Communications 无线通信, 2012, 2, 17-23 /10.12677/hjwc.2012.21004 Published Online February 2012 (/journal/hjwc) Overview of Video Transmission Methods and Techniques in * Ad Hoc Networks Zhaohui Wang Computer Science and Technology School, Soochow University, Suzhou Email: zhhwang@ Received: Nov. 1st, 2011; revised: Nov. 27th, 2011; accepted: Dec. 9th, 2011 Abstract: 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. Keywords: Ad Hoc; Video Encoding; Video Transmission; Frame Reconst Ad Hoc 网络中的视频传输方法与技术综述* 王朝晖 苏州大学计算机科学与技术学院，苏州 Email: zhhwang@ 收稿日期：2011 年 11 月 1 日；修回日期：2011 年 11 月 27 日；录用日期：2011 年 12 月 9 日 摘 要：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