A Novel Congestion Control Technique for Mpeg-4 Video Streaming In Wireless Networks

Transmission Control Protocol (TCP) is rarely chosen as the transport protocol for video streaming applications, mainly because of its poor congestion control capability. Recently, TCP Friendly Rate Control (TFRC) protocol and its variants are used for the congestion control in MPEG-4 video streaming. This paper proposes a novel congestion control algorithm that enhances the TFRC Veno protocol. It decouples the wireless loss from that of the congestion loss based on the queuing delay in the routing buffer. The queue length is estimated through the Round Trip Time (RTT) measurements. This algorithm is simulated under various congestion levels of WLAN. Significant improvement in Throughput, Packet delivery ratio, delay, jitter and fairness index are found.