Improving real time video surveillance performance using inter-frame retransmission

Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) are common transport layer protocols used in the IP based networks. However, both protocols have disadvantages for wireless video transmission. TCP yields high delay, while UDP experiences high packet loss. Lost packet retransmission is one of the solutions in video transmission to enhance video quality. This paper proposes inter-frame retransmission method to enhance the performance of video surveillance over WiMAX. The method outperforms the existing retransmission protocols.