Improving TCP smoothness by synchronized and measurement-based congestion avoidance
NOSSDAV '03 Proceedings of the 13th international workshop on Network and operating systems support for digital audio and video
Exploiting the efficiency and fairness potential of AIMD-based congestion avoidance and control
Computer Networks: The International Journal of Computer and Telecommunications Networking
Limitations of Equation-Based Congestion Control in Mobile Ad Hoc Networks
ICDCSW '04 Proceedings of the 24th International Conference on Distributed Computing Systems Workshops - W7: EC (ICDCSW'04) - Volume 7
Exploiting energy-saving potential in heterogeneous networks
International Journal of Parallel, Emergent and Distributed Systems - Advances in Wireless Networks
A blind method towards performance improvement of high performance TCP with random losses
WWIC'06 Proceedings of the 4th international conference on Wired/Wireless Internet Communications
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TCP ( a, β ) protocols trade the congestion window increase value a for the decrease ratio β, to generate smoother traffic patterns and to maintain a friendly behavior. In this paper, we study the design assumptions of TCP ( a, β ) protocols and discuss the impact of equation-based modulation of a and β on application efficiency. Weconfirm experimentally that, in general, smoothness and responsiveness constitute a tradeoff; however, we uncover undesirable dynamics of the protocols when the network or flow characteristics do not follow a prescribed and static behavior. For example, we show that smooth backward adjustments confine the protocol's capability to exploit resources that become available rapidly, and embarrass the fair and efficient growth of incoming flows.Furthermore, we show that in the context of wireless networks with high error rate, a low a dictates a conservative behavior that degrades the protocol performance with both delay-tolerant and -sensitive applications; and in the context of high contention of heterogeneous flows, a low a does not contribute to efficiency and friendliness.