On the performance of DCCP in wireless mesh networks

Authors:
P. Navaratnam;N. Akhtar;R. Tafazolli
Affiliations:
University of Surrey, Guildford, U.K.;University of Surrey, Guildford, U.K.;University of Surrey, Guildford, U.K.
Venue:
Proceedings of the 4th ACM international workshop on Mobility management and wireless access
Year:
2006

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Abstract

The Datagram Congestion Control Protocol (DCCP) has been recently proposed as a new transport protocol, suitable for use by applications such as multimedia streaming. Wireless mesh networks have promising commercial potential for a large variety of applications. In this paper, we evaluate the performance of DCCP with TCP Friendly Rate Control (TFRC) in wireless mesh networks using ns2 simulations, in terms of fairness and throughput smoothness. Our results show that in wireless mesh networks DCCP shares the limited wireless channel bandwidth fairly with the competing flows and provides better throughput smoothness than TCP flows in isolation i.e. with no competing flows. However, DCCP loses its ability to maintain the smoothness for streaming media applications with competing flows in the network.