Retransmission Loss Recovery by Duplicate Acknowledgment Counting

Beomjoon Kim, Jaiyong Lee

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


The performance of transmission control protocol (TCP) is largely dependent upon its loss recovery. Therefore, it is a very important issue whether the packet losses may be recovered without retransmission timeout (RTO) or not. TCP always evokes RTO if a retransmitted packet is lost again. In order to alleviate this problem, we propose an algorithm called duplicate acknowledgment counting (DAC). We use a stochastic model to evaluate the performance of DAC, and compare it with TCP NewReno. Numerical results evaluated by simulations show that DAC can improve TCP loss recovery significantly in presence of random losses.

Original languageEnglish
Pages (from-to)69-71
Number of pages3
JournalIEEE Communications Letters
Issue number1
Publication statusPublished - 2004 Jan

All Science Journal Classification (ASJC) codes

  • Modelling and Simulation
  • Computer Science Applications
  • Electrical and Electronic Engineering


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