Timer and sequence based packet loss detection scheme for efficient selective retransmission in DCCP

Data Congestion Control Protocol (DCCP) is new transport protocol for multimedia applications. Although the standard DCCP does not provide retransmission scheme, many research works have proposed selective retransmission methods for DCCP to improve QoS of applications. However, these researches do not consider packet loss detection scheme although existing packet loss detection schemes are not appropriate for efficient retransmission. This paper proposes a new packet loss detection method for efficient selective retransmission in DCCP. The proposed scheme detects packet loss by using timer and out of sequence packets. Simulation results show that the proposed method improves the performance of retransmission by detecting packet loss more quickly and accurately.