TY - GEN
T1 - Performance evaluation and improvement of hybrid TCP congestion control mechanisms in wireless LAN environment
AU - Hashimoto, Masafumi
AU - Hasegawa, Go
AU - Murata, Masayuki
PY - 2008
Y1 - 2008
N2 - In this paper, we first evaluate the performance of recent TCP variants for high-speed and long-delay networks in IEEE 802.11 wireless LAN environment through simulation experiments. We show that some of them still have well-known TCP unfairness property between uplink and downlink flows, and that there is another unfairness problem among uplink flows caused by the loss-based behavior of hybrid TCP variants. We then propose an end-to-end-basis modification to TCP congestion control mechanisms to alleviate the unfairness problems, which activates the congestion control when detecting ACK packet losses. Through simulation experiments, we present that the proposed method is effective not only for TCP fairness among uplink flows but also for fairness between uplink and downlink flows, while keeping the total throughput to be large enough.
AB - In this paper, we first evaluate the performance of recent TCP variants for high-speed and long-delay networks in IEEE 802.11 wireless LAN environment through simulation experiments. We show that some of them still have well-known TCP unfairness property between uplink and downlink flows, and that there is another unfairness problem among uplink flows caused by the loss-based behavior of hybrid TCP variants. We then propose an end-to-end-basis modification to TCP congestion control mechanisms to alleviate the unfairness problems, which activates the congestion control when detecting ACK packet losses. Through simulation experiments, we present that the proposed method is effective not only for TCP fairness among uplink flows but also for fairness between uplink and downlink flows, while keeping the total throughput to be large enough.
UR - http://www.scopus.com/inward/record.url?scp=64049095257&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=64049095257&partnerID=8YFLogxK
U2 - 10.1109/ATNAC.2008.4783352
DO - 10.1109/ATNAC.2008.4783352
M3 - Conference contribution
AN - SCOPUS:64049095257
SN - 9781424426034
T3 - Proceedings of the 2008 Australasian Telecommunication Networks and Applications Conference, ATNAC 2008
SP - 367
EP - 372
BT - Proceedings of the 2008 Australasian Telecommunication Networks and Applications Conference, ATNAC 2008
T2 - 2008 Australasian Telecommunication Networks and Applications Conference, ATNAC 2008
Y2 - 7 December 2008 through 10 December 2008
ER -