TY - GEN
T1 - TCP WestwoodVT
T2 - 6th International IFIP-TC6 Networking Conference - NETWORKING 2007 Ad Hoc and Sensor Networks, Wireless Networks, Next Generation Internet
AU - Koo, Jahwan
AU - Mun, Sung Gon
AU - Choo, Hyunseung
PY - 2007
Y1 - 2007
N2 - Conventional TCP in wireless environment cannot differentiate packet losses caused by network congestion from those caused by wireless link errors, thus, resulting in severe performance degradation. Accordingly, efficient operation of TCP in wireless networks is a critical issue in the context of differentiation between packet loss. Towards this issue, we proposes a novel technique, WestwoodVT (WestwoodNR based on TCP Vegas buffer Thresholds), which is a sender-based TCP congestion control mechanism for discriminating the cause of packet loss to enhance the performance of TCP in wireless environment. Simulation results show that, under various wireless link error rates, it achieves a maximum of 41% and 118% improvements in goodput over WestwoodNR and TCP Reno, respectively. WestwoodVT only requires changes at the send-side. Thus, it eliminates any changes to the intermediate routers unlike TCP New Jersey. Therefore, it is cost effective to implement in already deployed networks. Moreover, its fairness and friendliness are also satisfied.
AB - Conventional TCP in wireless environment cannot differentiate packet losses caused by network congestion from those caused by wireless link errors, thus, resulting in severe performance degradation. Accordingly, efficient operation of TCP in wireless networks is a critical issue in the context of differentiation between packet loss. Towards this issue, we proposes a novel technique, WestwoodVT (WestwoodNR based on TCP Vegas buffer Thresholds), which is a sender-based TCP congestion control mechanism for discriminating the cause of packet loss to enhance the performance of TCP in wireless environment. Simulation results show that, under various wireless link error rates, it achieves a maximum of 41% and 118% improvements in goodput over WestwoodNR and TCP Reno, respectively. WestwoodVT only requires changes at the send-side. Thus, it eliminates any changes to the intermediate routers unlike TCP New Jersey. Therefore, it is cost effective to implement in already deployed networks. Moreover, its fairness and friendliness are also satisfied.
KW - Congestion control
KW - Transmission control protocol
KW - Wireless networks
UR - https://www.scopus.com/pages/publications/37249038575
U2 - 10.1007/978-3-540-72606-7_34
DO - 10.1007/978-3-540-72606-7_34
M3 - Conference contribution
AN - SCOPUS:37249038575
SN - 9783540726050
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 391
EP - 402
BT - NETWORKING 2007 Ad Hoc and Sensor Networks, Wireless Networks, Next Generation Internet - 6th International IFIP-TC6 Networking Conference, Proceedings
A2 - Akyildiz, Ian F.
A2 - Sivakumar, Raghupathy
A2 - Ekici, Eylem
A2 - de Oliveira, Jaudelice Cavalcante
A2 - McNair, Janise
PB - Springer Verlag
Y2 - 14 May 2007 through 18 May 2007
ER -