Improving TCP performance with fast adaptive congestion control during soft vertical handoff

被引：2

作者：

Wang, Neng-Chung ^{[1
]}

Chen, Young-Long ^{[2
]}

Cheng, Chia-Hsin ^{[3
]}

Chiang, Yung-Kuei ^{[1
]}

Wang, Ying-Yuan ^{[4
]}

机构：

[1] Natl United Univ, Dept Comp Sci & Informat Engn, Miaoli 360, Taiwan

[2] Natl Taichung Inst Technol, Dept Comp Sci & Informat Engn, Taichung 404, Taiwan

[3] Natl Formosa Univ, Dept Elect Engn, Yunlin 632, Taiwan

[4] Chaoyang Univ Technol, Dept Comp Sci & Informat Engn, Taichung 413, Taiwan

来源：

TELECOMMUNICATION SYSTEMS | 2013年 / 52卷 / 01期

关键词：

3G cellular network; Congestion window; Soft vertical handoff; TCP; WLAN; NETWORKS;

D O I：

10.1007/s11235-011-9463-y

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

Recently, the research on the interworking between 3G cellular networks and WLANs is actively being constructed. To integrate these two technologies, there are many issues such as the network architecture, mobility management, and security which should be solved. During vertical handoff, some undesirable phenomena may mistakenly trigger TCP congestion control operations and thus degrade TCP performance. In this paper, we propose an approach that can quickly estimate available bandwidth when a mobile node (MN) handoff occurs. A sender updates the adaptive slow-start threshold (ssthresh) and congestion window size (cwnd) to improve TCP performance during soft vertical handoff in hybrid mobile networks. Our scheme requires only minor modifications of the transport layer of the end hosts. Simulation results show that our scheme effectively improves the TCP performance.

引用

页码：97 / 104

页数：8

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