TY - GEN
T1 - A new approach to improving end-to-end TCP enhancement schemes over mixed wired/wireless networks
AU - Cheung, Chi Chung
PY - 2008/6/16
Y1 - 2008/6/16
N2 - Various transmission control protocol (TCP) enhancement schemes have been proposed to improve TCP performance over mixed wired/wireless networks. Among the different kinds of TCP enhancement schemes, end-to-end TCP enhancement schemes have the lowest implementation complexity and do not violate the semantics of TCP. A general principle of these end-to-end TCP enhancement schemes is to distinguish wireless loss from congestion loss, and to take the cause of the loss into consideration when performing TCP congestion control. However, they do not consider the ratio of congestion losses to wireless losses which significantly affects their performance, mainly in terms of their throughputs. In this paper, a new approach has been developed to address this issue. To apply the approach into an end-to-end TCP enhancement scheme, the ratio of congestion losses to wireless losses are estimated and the parameters used in the scheme are adjusted to further improve its performance. The simulation experiments showed that Veno, a popular end-to-end TCP enhancement scheme, with the new approach always outperformed the original Veno in terms of throughput and fairness, and their differences could be more than two times better. Note that this new approach can generally be applied to many other existing end-to-end TCP enhancement schemes, with minimal implementation costs.
AB - Various transmission control protocol (TCP) enhancement schemes have been proposed to improve TCP performance over mixed wired/wireless networks. Among the different kinds of TCP enhancement schemes, end-to-end TCP enhancement schemes have the lowest implementation complexity and do not violate the semantics of TCP. A general principle of these end-to-end TCP enhancement schemes is to distinguish wireless loss from congestion loss, and to take the cause of the loss into consideration when performing TCP congestion control. However, they do not consider the ratio of congestion losses to wireless losses which significantly affects their performance, mainly in terms of their throughputs. In this paper, a new approach has been developed to address this issue. To apply the approach into an end-to-end TCP enhancement scheme, the ratio of congestion losses to wireless losses are estimated and the parameters used in the scheme are adjusted to further improve its performance. The simulation experiments showed that Veno, a popular end-to-end TCP enhancement scheme, with the new approach always outperformed the original Veno in terms of throughput and fairness, and their differences could be more than two times better. Note that this new approach can generally be applied to many other existing end-to-end TCP enhancement schemes, with minimal implementation costs.
KW - Congestion control
KW - Congestion loss
KW - Random loss
KW - Transmission control protocol (TCP)
KW - Wireless access networks
KW - Wireless TCP enhancements
UR - http://www.scopus.com/inward/record.url?scp=67650248964&partnerID=8YFLogxK
U2 - 10.1109/ICTEL.2008.4652648
DO - 10.1109/ICTEL.2008.4652648
M3 - Conference article published in proceeding or book
AN - SCOPUS:67650248964
SN - 9781424420360
T3 - 2008 International Conference on Telecommunications, ICT
BT - 2008 International Conference on Telecommunications, ICT
T2 - 2008 International Conference on Telecommunications, ICT
Y2 - 16 June 2008 through 19 June 2008
ER -