Performance Evaluation and Parameter Optimization of SoftCast Wireless Video Broadcast

Performance Evaluation and Parameter Optimization of SoftCast Wireless Video Broadcast

Blog Article

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 Clothing 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 Chimes simulation results show that SoftCast provides a b etter p erformance in the scalability to channel conditions and the robustness to packet losses.