Computer Science ›› 2014, Vol. 41 ›› Issue (Z6): 306-311.

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Video-distortion Optimized Cooperative Wireless Network Coding

DI Hai-yang,BAI Guang-wei and SHEN Hang   

  • Online:2018-11-14 Published:2018-11-14

Abstract: Network coding can greatly improve the network throughput.Especially,an appropriate network codes selection strategy is great important to enhance quality in video transmission.This paper proposes an efficient network coding scheme (ENC).On this basis,considering the characteristics of video transmission,we propose an efficiency optimized network coding scheme based on rate control (ENC-RaDio),using Lagrange multiplier method to choose those coded packets,such that we can achieve a lower distortion for video transmission.Our simulation results demonstrate that,compared with typical loss-aware network coding schemes,ENC-RaDio achieves significant performance improvement in terms of decodable frame ratio and throughput.

Key words: Rate control,Network coding,Throughput,Video quality

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