EFR: A retransmit scheme for TCP in wireless LANs

Yosuke Tamura, Yoshito Tobe, Hideyuki Tokuda

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)


In this paper, we propose a new, efficient, fast retransmission scheme for wireless LANs. Wireless LANs are becoming popular and providing an efficient protocol over a wireless link is important. In our experiments with 2.4 GHz WaveLAN, the poor TCP performance observed was attributed to frequent expiration of the retransmission timer. To avoid unnecessary expiration of the retransmission timer, we propose a scheme in which fast retransmission is performed efficiently. The proposed modification only affects a TCP sender, and our version of TCP with the change is interoperable with existing TCP implementations. The change is especially effective in wireless LAN environments, where we have demonstrated significant improvements in throughput, 10-15%, via experiments with 2.4 GHz WaveLAN.

Original languageEnglish
Pages (from-to)2-11
Number of pages10
JournalConference on Local Computer Networks
Publication statusPublished - 1998 Dec 1
EventProceedings of the 1998 23rd Conference on Local Computer Networks - Boston, MA, USA
Duration: 1998 Oct 111998 Oct 14

ASJC Scopus subject areas

  • Software
  • Electrical and Electronic Engineering


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