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Enhanced Westwood+ TCP for Wireless/Heterogeneous Networks

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bandwidth issues

Overview Westwood/Westwood+ TCP is well known by its effective AIAD (Additive Increase and Adaptive Decrease) bandwidth estimation algorithm. This paper proposes an enhanced Westwood+ scheme for wireless/heterogeneous networks with a high random bit error rate (BER), in which the sender is introduced with the following three characteristics: to consider the impact of corruption strength in bandwidth estimation; to reset new slow start threshold (ssthresh) and congestion window (cwnd) after receiving every special ACK with random bit error event's information; to effectively avoid the unwanted timeouts which can be induced in conventional TCP in the case that the retransmitted packets are corrupted in wireless channel.

Further White Paper Details
Publisher	Kyungpook National University	File Format	PDF
Date Published	June 2006
Format	White Papers
Topics	Bandwidth Issues, TCP - IP

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