TCP HACK: a mechanism to improve performance over lossy links

被引：6

作者：

Balan, RK ^{[1
]}

Lee, BP ^{[1
]}

Kumar, KRR ^{[1
]}

Jacob, L ^{[1
]}

Seah, WKG ^{[1
]}

Ananda, AL ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Comp Sci, Ctr Internet Res, Sch Comp, Singapore 117543, Singapore

来源：

COMPUTER NETWORKS-THE INTERNATIONAL JOURNAL OF COMPUTER AND TELECOMMUNICATIONS NETWORKING | 2002年 / 39卷 / 04期

关键词：

protocol design; protocol analysis; wireless networks;

D O I：

10.1016/S1389-1286(01)00310-3

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

In recent years, wireless networks have become increasingly common and an increasing number of devices are communicating with each other over lossy links. Unfortunately, TCP performs poorly over lossy links as it is unable to differentiate the loss due to packet corruption from that due to congestion. In this paper, we present an extension to TCP which enables TCP to distinguish packet corruption from congestion in lossy environments resulting in improved performance. We refer to this extension as the HeAder ChecKsum option (HACK). We implemented our algorithm in the Linux kernel and performed various tests to determine its effectiveness. Our results have shown that HACK performs substantially better than both selective acknowledgement (SACK) and NewReno in cases where burst corruptions are frequent. We also found that HACK can co-exist very nicely with SACK and performs even better with SACK enabled. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：347 / 361

页数：15

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