Performance Evaluation of Real-time Video over Wireless Ad Hoc Networks

摘要：

The performance of real-time video over wireless ad hoc networks is evaluated based on a novel real-time hardware in the loop test bed. The supporting capabilities of different ad hoc routing protocols and two common video coding algorithms are compared. Results show that the video packet delivery ratios of different routing protocols have similar trends of approximate linear descending with the increase of hop count after certain thresholds. The real-time video quality at more than 4-hop distance, where the packet delivery ratio is less than 75％, cannot be accepted. MPEG-2 can provide real-time video service within 3 hops, while the Motion JPEG cannot support multi-hop real-time video transport. The packet delivery ratio and the decoded block ratio, got with MPEG-2 has an average increase of 55.7％ and 205.6％, compared with the results got with Motion JPEG, respectively.

关键词： video ad hoc performance wireless networks

作者: Zhao Yu-ting Dai Guan-zhong Mu De-jun

作者单位: Control & Networks Institute, Automatic School Northwestern Polytechnical University 710072, Xian, China

会议类型: 国际会议

会议名称: 第七届网格与协同计算国际会议(Seventh International Conference on Grid and Cooperative Computing GCC 2008)

会议地点: 深圳

会议语种:英文

页码: 653-657

在线出版日期: 2008-10-24（万方平台首次上网日期，不代表论文的发表时间）