Title :
CAT: Contention Aware Transport Protocol for IEEE 802.11 MANETs
Author :
Lee, Kang Yong ; Joo, Seong-Soon ; Ryoo, Jeong-dong
Author_Institution :
Div. of Broadband Convergence Network Res., Electron. & Telecommun. Res. Inst., Daejeon
Abstract :
In this paper, we present a contention aware transport (CAT) protocol which is hop-by-hop, rate-based control, over IEEE 802.11 MANETs. CAT introduces a novel control metric, sending rate control factor (SRCF), for the congestion control. The SRCF considers the contention density which represents the degree of contention level experienced at a given node. In addition, to support reliable delivery, CAT uses a hop-by-hop acknowledgement scheme. The main purpose of CAT is, to find optimal traffic load that the channel bandwidth is fully utilized by sending rate adjustment while minimizing the packet losses from medium contention. The simulation results show that the network throughput achieved by CAT is around 10% and about 30% at peak point, higher than that of TCP and TCP-SACK
Keywords :
ad hoc networks; mobile radio; telecommunication congestion control; transport protocols; IEEE 802.11 MANET; congestion control; contention aware transport protocol; contention density; hop-by-hop acknowledgement scheme; mobile ad hoc networks; sending rate control factor; Bandwidth; Convergence; Mobile ad hoc networks; Monitoring; Optimal control; Telecommunication congestion control; Telecommunication control; Telecommunication traffic; Throughput; Transport protocols; Congestion Control; IEEE 802.11; Medium Contention; Mobile Ad Hoc Networks; TCP; component;
Conference_Titel :
Vehicular Technology Conference, 2006. VTC 2006-Spring. IEEE 63rd
Conference_Location :
Melbourne, Vic.
Print_ISBN :
0-7803-9391-0
Electronic_ISBN :
1550-2252
DOI :
10.1109/VETECS.2006.1682879
