An ACK buffering method to improve TCP performance in mobile computing environments

Jeng Ji Huang*, Jin Fu Chang

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

摘要

In mobile computing environments, a problem may exist between loss recovery mechanisms employed by the TCP (transmission control protocol) and RLP (radio link protocol). It is because that local retransmissions performed by the RLP could interfere with the TCP end-to-end error recovery when there are long and correlated packet losses due to bursty channel errors. That is, a spurious timeout [1], [2] would occur at the transport layer. In this paper, a new method is proposed to effectively suppress the occurrence of TCP spurious timeouts. In this new method a small number of ACKs (acknowledgements) is buffered at the base station prior to the emergence of every bad state period in the wireless channel, and these ACKs are henceforth released by the base station one at a time to reset the TCP sender's retransmission timer. Comprehensive comparisons between the proposed method and a baseline method are conducted through simulations to show that the improvement in throughput performance can be as large as 22%.

原文英語
頁(從 - 到)2273-2281
頁數9
期刊IEICE Transactions on Communications
E85-B
發行號10
出版狀態已發佈 - 2002 10月
對外發佈

ASJC Scopus subject areas

  • 軟體
  • 電腦網路與通信
  • 電氣與電子工程

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