AVP: a highly efficient real-time protocol for multimediacommunications on Internet

摘要

A new transport protocol called Audio-Video Protocol (AVP) forhighly efficient multimedia communications on the Internet is presentedin this paper. While providing similar real-time delivery functions ofRTP/RTCP AVP adopts a novel audio-based synchronization scheme. Thissynchronization scheme has two advantages. One is that there is no needto include a timestamp in each transmitted packet so that the AVP headeris small for highly efficient transmission. The other is that AVP canachieve lower end-to-end message delay by putting multiple audio framesor mixed audio-video frames in the same AVP packet to reduce the packetrate. Furthermore, AVP provides different QoS by assigning differentpriority numbers to the packers. Simulation results are presented toshow the good performance of AVP in real-time video-audio delivery