Title :
New TCP Mechanism over Heterogeneous Networks
Author :
Changbiao Xu ; Si Wei
Author_Institution :
Coll. of Commun. & Inf. Eng., Chongqing Univ. of Posts & Telecommun., Chongqing
Abstract :
With the development of the communication technology, computer networks present characteristics of scale, heterogeneous and dynamic. Traditional TCP has been designed and turned to perform well under the wired network. However, it is not ready for the heterogeneous networks. In order to improve the TCP performance over the heterogeneous networks, this paper proposes a modified TCP congestion control mechanism based on bandwidth estimation and double AIMD (additive-increase multiplicative-decrease) algorithm, named switch-TCP. Switch-TCP performances are investigated through simulations. Comparing with TCP Reno, the throughput may be improved; the retransmit probability may be decreased. Switch-TCP can coexist with TCP Reno very friendly. In addition, switch-TCP is obtained through a little modification at the sender side, so switch-TCP can be easily developed and the additional overheads are very low.
Keywords :
bandwidth allocation; computer networks; probability; telecommunication congestion control; transport protocols; TCP Reno; TCP congestion control; TCP performance; bandwidth estimation; communication technology; computer network; double additive-increase multiplicative-decrease algorithm; heterogeneous network; probability; switch-TCP; Bandwidth; Communication system control; Computer networks; Educational institutions; Embedded software; Filters; Next generation networking; TCPIP; Transport protocols; Wireless networks; Congestion control; Heterogeneous network; TCP; Vertical handoff;
Conference_Titel :
Embedded Software and Systems, 2008. ICESS '08. International Conference on
Conference_Location :
Sichuan
Print_ISBN :
978-0-7695-3287-5
DOI :
10.1109/ICESS.2008.86