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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2009, Vol. 10 Issue (6): 820-827    DOI: 10.1631/jzus.A0820380
Electrical & Electronic Engineering     
Adaptive fractional window increment of TCP in multihop ad hoc networks
Liang-hui DING, Wen-jun ZHANG, Xin-bing WANG, Liang QIAN, You-yun XU
Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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Abstract  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 modifications.

Key words： TCP      Multihop      Adaptive fractional window increasing algorithm (AFW)     
Received: 19 May 2008     
CLC:  TN929.5  
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Liang-hui DING
Wen-jun ZHANG
Xin-bing WANG
Liang QIAN
You-yun XU
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Liang-hui DING, Wen-jun ZHANG, Xin-bing WANG, Liang QIAN, You-yun XU. Adaptive fractional window increment of TCP in multihop ad hoc networks. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2009, 10(6): 820-827.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.A0820380     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2009/V10/I6/820

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