Research Article
Performance Evaluation and Parameter Optimization of SoftCast Wireless Video Broadcast
@INPROCEEDINGS{10.4108/icst.mobimedia.2015.259038, author={Dongxue Yang and Yunqiang Bi and Zhongwei Si and Zhiqiang He and Kai Niu}, title={Performance Evaluation and Parameter Optimization of SoftCast Wireless Video Broadcast}, proceedings={8th International Conference on Mobile Multimedia Communications}, publisher={EAI}, proceedings_a={MOBIMEDIA}, year={2015}, month={8}, keywords={wireless video broadcast softcast h264 scalable video communication linear transmission}, doi={10.4108/icst.mobimedia.2015.259038} }- Dongxue Yang
Yunqiang Bi
Zhongwei Si
Zhiqiang He
Kai Niu
Year: 2015
Performance Evaluation and Parameter Optimization of SoftCast Wireless Video Broadcast
MOBIMEDIA
ICST
DOI: 10.4108/icst.mobimedia.2015.259038
Abstract
Wireless video broadcast plays an imp ortant role in multimedia communication with the emergence of mobile video applications. However, conventional video broadcast designs suffer from a cliff effect due to separated source and channel encoding. The newly prop osed SoftCast scheme employs a cross-layer design, whose reconstructed video quality is prop ortional to the channel condition. In this pap er, we provide the p erformance evaluation and the parameter optimization of the SoftCast system. Optimization principles on parameter selection are suggested to obtain a b etter video quality, o ccupy less bandwidth and/or utilize lower complexity. In addition, we compare SoftCast with H.264 in the LTE EPA scenario. The simulation results show that SoftCast provides a b etter p erformance in the scalability to channel conditions and the robustness to packet losses.
