Research on Stream Media QoS of Embedded System
Shangqin Xiao · Jisuanji fangzhen · 2007
Based on the features of both the network stream media technology and the embedded system,in order to ensure the QoS(Quality of Service) of stream media,the dissertation has shown a research work on the buffer control strategies based on the client and the stream media communication technology with flow control functions.Based on discussing the structure of VOD(Video on Demand),a simplified method for estimating buffer length was proposed by using mean transmission rate,delay jitter,decoding rate and assistant parameter.The buffer control strategy of initiative discard at the client end was also given according to data's levels of priority.And a flow control algorithm was also provided based on the server end.The result indicated that buffer resources was saved,the flow control function was realized,and the sytem QoS had ben enhanced.