A TCP acceleration algorithm for a wireless link using rate adaptation based on round-trip-time and virtual receiver window information

Authors:
Sungwon Lee;Seongsoo Park;Jaehwang Yu;Choongseon Hong
Affiliations:
Department of Computer Engineering, College of Electronics and Information, Kyung Hee University, Korea;SK Telecom C&I Business, Institute of Future Technology;SK Telecom C&I Business, Institute of Future Technology;Department of Computer Engineering, College of Electronics and Information, Kyung Hee University, Korea
Venue:
IEEE Communications Letters
Year:
2009

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Abstract

FAST Transmission Control Protocol (TCP) was previously proposed for high capacity network environments with long delay, and "FAST TCP with Snoop" performs better than conventional TCP enhancements in mobile wireless network environments. However, FAST TCP has limitations when used over a dynamic mobile wireless link with a high frame error ratio (FER) and frequent delay changes due to the variable rate. We propose an enhanced TCP acceleration algorithm at the TCP sender side which efficiently adapts to the maximum transmission rate of a mobile wireless link using the round trip time (RTT) and virtual receiver window (RWND) information. The proposed algorithm provides superior performance over mobile wireless network environments.