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DCCP: Transport Protocol with Congestion Control and Unreliability
September/October 2008 (vol. 12 no. 5)
pp. 78-83
Yuan-Cheng Lai, National Taiwan University of Science and Technology
The Datagram Congestion Control Protocol (DCCP) is a new transport protocol standard that the IETF recently proposed. Because DCCP simultaneously features congestion control and unreliable transmission, it's especially suited to multimedia streaming applications and has thus received much attention. This article introduces DCCP's main characteristics and operation.

1. E. Kohler et al., Datagram Congestion Control Protocol (DCCP), IETF RFC 4340, Mar. 2006; www.ietf.org/rfcrfc4340.txt.
2. E. Kohler, M. Handley, and S. Floyd, "Designing DCCP: Congestion Control without Reliability," Proc. Conf. Applications, Technologies, Architectures, and Protocols for Computer Communications, ACM Press, 2006, http://portal.acm.orgcitation.cfm?id=1159918 .
3. S. Floyd and E. Kohler, Profile for Datagram Congestion Control Protocol (DCCP) Congestion Control ID 2: TCP-Like Congestion Control, IETF RFC 4341, Mar. 2006; www.ietf.org/rfcrfc4341.txt.
4. S. Floyd, E. Kohler, and J. Padhye, Profile for Datagram Congestion Control Protocol (DCCP) Congestion Control ID 3: TCP-Friendly Rate Control (TFRC), IETF RFC 4342, Mar. 2006; www.ietf.org/rfcrfc4342.txt.
5. E. Blanton et al., A Conservative Selective Acknowledgement (SACK)-Based Loss Recovery Algorithm for TCP, IETF RFC 3517, Apr. 2003; www.ietf.org/rfcrfc3517.txt.
6. S. Takeuchi et al., "Performance Evaluations of DCCP for Bursty Traffic in Real-time Application," Proc. IEEE Applications and the Internet, IEEE CS Press, 2005, pp. 142–149.
7. C. Xu, J. Liu, and C. Zhao, "Performance Analysis of Transmitting H.263 over DCCP," Proc. IEEE VLSI Design and Video Technology, IEEE Press, 2005, pp. 328–331.
8. R. Stewart et al., Stream Control Transmission Protocol (SCTP) Partial Reliability Extension (PR-SCTP), IETF RFC 3758, May 2004; www.ietf.org/rfcrfc3758.txt.

Index Terms:
DCCP, congestion control, TCP-friendly rate control
Citation:
Yuan-Cheng Lai, "DCCP: Transport Protocol with Congestion Control and Unreliability," IEEE Internet Computing, vol. 12, no. 5, pp. 78-83, Sept.-Oct. 2008, doi:10.1109/MIC.2008.99
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