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The performance of traditional TCP congestion control protocol degrades when congestion and contention increase in ad hoc networks that use the IEEE 802.11 DCF. Many of the problems result from medium contention at the media access control (MAC) layer. In this paper, we present a new contention-based congestion control (CBCC) method according to a novel congestion information from MAC layer. This...
The Stream Control Transmission Protocol (SCTP) is a new transport layer protocol. Multihoming is one of the most important features in SCTP, which can be used by the data sender to send data to a receiver through different paths. Although SCTP provides support for multihoming, the basic reason for such a provision was to improve reliability of associations. Currently, simultaneous transfer of new...
With the increase in network bandwidth and delay, TCP shows poor performance due to the problems of slow recovery from loss and RTT bias inherit in its AIMD congestion control algorithm. Data intensive applications over high BDP networks such as the computational grids need new transport protocols to support them. To address this issue, a new application level protocol has been developed above UDP,...
With the increasing number of media flows using UDP in IP networks there is a strong need to enable fairness between UDP and TCP traffic. The TCP traffic will suffer because of the unresponsiveness of UDP to congestion in the IP network. To enable responsiveness of UDP traffic, the TCP-friendly rate control (TFRC) protocol can be used. With the coexistence of TCP and UDP, where the rate adaptation...
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