论文信息 - Can DCCP Replace UDP in Changing Network Conditions?

Can DCCP Replace UDP in Changing Network Conditions?

DCCP is proposed to replace UDP for its ability of congestion control while maintaining its promptness by ignoring lost packets as UDP does. The network would suffer less congestion. However, whether the applications that switch from UDP to DCCP can maintain their needed performance or not is a big question. This paper investigates this problem by evaluating DCCP based VoIP vs. a variety of TCPs using NS-2 simulator. Our study shows that DCCP has a disadvantage in competing network bandwidth with existing TCPs. DCCP based VoIP may perform poorly in facing the competition of TCP traffics.

Yao-Nan Lien | Yu-Chi Ding | Y. Lien | Yu-Chi Ding

[1] Larry L. Peterson,et al. TCP Vegas: new techniques for congestion detection and avoidance , 1994 .

[2] S. Froyd,et al. Profile for DCCP Congestion Control ID 3 : TFRC Congestion Control , 2003 .

[3] Sally Floyd,et al. The NewReno Modification to TCP's Fast Recovery Algorithm , 2004, RFC.

[4] Raj Jain,et al. Analysis of the Increase and Decrease Algorithms for Congestion Avoidance in Computer Networks , 1989, Comput. Networks.

[5] W. Richard Stevens,et al. TCP Slow Start, Congestion Avoidance, Fast Retransmit, and Fast Recovery Algorithms , 1997, RFC.

[6] Sally Floyd,et al. Simulation-based comparisons of Tahoe, Reno and SACK TCP , 1996, CCRV.

[7] Van Jacobson,et al. Congestion avoidance and control , 1988, SIGCOMM '88.

[8] Mark Handley,et al. Designing DCCP: congestion control without reliability , 2006, SIGCOMM.

[9] Shahrudin Awang Nor,et al. Simulated performance of VoIP using DCCP CCID2 over large delay link networks , 2008 .

[10] Nils-Erik Mattsson,et al. A DCCP module for ns-2 , 2004 .

[11] Tatsuya Suda,et al. Network border patrol: preventing congestion collapse and promoting fairness in the Internet , 2004, IEEE/ACM Transactions on Networking.