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Basestation flow control for wired to wireless networks

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Abstract

With the exponential growth of the internet, wireless networks such as satellite networks are becoming increasingly popular. The characteristics of satellite networks such as long latency, large delay-bandwidth product, high bit error rate over satellite links and variable round trip time, severely degrade TCP/IP performance. At the conjunction of the satellite link and the fixed link, the basestation, the difference in capacity between the satellite link and the fixed link causes the basestation to experience congestion losses that adversely impact TCP performance. We propose a technique that substantially reduces the congestion at the base station and enforces fairness among the TCP connections that are sharing the satellite link. The technique does not require any change in the TCP sender or the receiver. The stability of our algorithm is analytically proven and its performance is evaluated using ns-2 simulations. Preliminary results yield almost a null congestion loss rate, a 60% decrease in average queue length, and more than 30% increase in the throughput. Fairness is well enforced.

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Notes

  1. In the rest of the text, we will justify why we use the expression “flow control” instead of congestion control.

  2. We apply the reducing factor twice when \({\frac{Q_l^j} {Q_{Max}}} > 0.3.\)

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Authors and Affiliations

  1. Computer Science and Software Engineering Department, Auburn University, Auburn, AL, 36849-5347, USA

    Saâd Biaz & Yawen Dai

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  1. Saâd Biaz
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  2. Yawen Dai
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Correspondence to Yawen Dai.

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Biaz, S., Dai, Y. Basestation flow control for wired to wireless networks. Wireless Netw 16, 775–791 (2010). https://doi.org/10.1007/s11276-009-0168-z

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  • DOI: https://doi.org/10.1007/s11276-009-0168-z

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