DocumentCode :
788999
Title :
REFWA: An Efficient and Fair Congestion Control Scheme for LEO Satellite Networks
Author :
Taleb, Tarik ; Kato, Nei ; Nemoto, Yoshiaki
Author_Institution :
Graduate Sch. of Inf. Sci., Tohoku Univ., Sendai
Volume :
14
Issue :
5
fYear :
2006
Firstpage :
1031
Lastpage :
1044
Abstract :
This paper examines some issues that affect the efficiency and fairness of the Transmission Control Protocol (TCP), the backbone of Internet protocol communication, in multi-hops satellite network systems. It proposes a scheme that allows satellite systems to automatically adapt to any change in the number of active TCP flows due to handover occurrence, the free buffer size, and the bandwidth-delay product of the network. The proposed scheme has two major design goals: increasing the system efficiency, and improving its fairness. The system efficiency is controlled by matching the aggregate traffic rate to the sum of the link capacity and total buffer size. On the other hand, the system min-max fairness is achieved by allocating bandwidth among individual flows in proportion with their RTTs. The proposed scheme is dubbed Recursive, Explicit, and Fair Window Adjustment (REFWA). Simulation results elucidate that the REFWA scheme substantially improves the system fairness, reduces the number of packet drops, and makes better utilization of the bottleneck link. The results demonstrate also that the proposed scheme works properly in more complicated environments where connections traverse multiple bottlenecks and the available bandwidth may change over data transmission time
Keywords :
Internet; bandwidth allocation; minimax techniques; satellite communication; telecommunication congestion control; telecommunication traffic; transport protocols; Internet protocol communication; LEO satellite networks; TCP; aggregate traffic rate; bandwidth-delay product; buffer size; fair congestion control scheme; min-max fairness; recursive explicit and fair window adjustment; transmission control protocol; Artificial satellites; Automatic control; Bandwidth; Communication system control; Control systems; IP networks; Low earth orbit satellites; Protocols; Spine; Spread spectrum communication; Congestion control; TCP; fairness; receiver´s advertised window adjustment; satellite networks;
fLanguage :
English
Journal_Title :
Networking, IEEE/ACM Transactions on
Publisher :
ieee
ISSN :
1063-6692
Type :
jour
DOI :
10.1109/TNET.2006.883130
Filename :
1709955
Link To Document :
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