Abstract
High-speed networks with large bandwidth-delay product present a unique environment where currently TCP may have a major challenge to its performance (e.g. throughput deterioration). A number of new TCP congestion control algorithms have been suggested to address the problems, but at one time they increase the bandwidth utilization and also bring some other limitations, such as low TCP-friendliness, severe RTT unfairness and high packet drop rate. This paper presents a novel cooperant congestion control protocol (C3P), which uses 1 bit routers' explicit feedback predicted information and round-trip times (RTT) delay signals to adjust the congestion windows appropriately. We evaluate the efficiency, TCP-friendliness and fairness of C3P in high bandwidth-delay product (BDP) networks through NS2 simulations.
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