Adaptive fractional window increment of TCP in multihop ad hoc networks

We propose an adaptive fractional window increasing algorithm （AFW） to improve the performance of the fractional window increment （FEW） in （Nahm et al., 2005）. AFW fully utilizes the bandwidth when the network is idle, and limits the operating window when the network is congested. We evaluate AFW an...

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Bibliographic Details
Published in:Journal of Zhejiang University. A. Science 2009-06, Vol.10 (6), p.820-827
Main Authors: Ding, Liang-hui, Zhang, Wen-jun, Wang, Xin-bing, Qian, Liang, Xu, You-yun
Format: Article
Language:English
Subjects:
Civil Engineering
Classical and Continuum Physics
Engineering
Industrial Chemistry/Chemical Engineering
Mechanical Engineering
TCP
网络带宽
自适应
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Summary:We propose an adaptive fractional window increasing algorithm （AFW） to improve the performance of the fractional window increment （FEW） in （Nahm et al., 2005）. AFW fully utilizes the bandwidth when the network is idle, and limits the operating window when the network is congested. We evaluate AFW and compare the total throughput of AFW with that of FeW in different scenarios over chain, grid, random topologies and with hybrid traffics. Extensive simulation through ns2 shows that AFW obtains 5% higher throughput than FeW, whose throughput is significantly higher than that of TCP-Newreno, with limited modi- fications.
ISSN:1673-565X
1862-1775
DOI:10.1631/jzus.A0820380