EFR: A Retransmit Scheme for TCP in Wireless LANs
نویسندگان
چکیده
In this paper, we propose a new, e cient, fast retransmission scheme for wireless LANs. Wireless LANs are becoming popular and providing an e cient 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 e ciently. The proposed modi cation only a ects a TCP sender, and our version of TCP with the change is interoperable with existing TCP implementations. The change is especially e ective in wireless LAN environments, where we have demonstrated signi cant improvements in throughput, 10 15%, via experiments with 2.4 GHz WaveLAN.
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