Title :
Throughput Modeling and Analysis of IEEE 802.11 DCF with Selfish Node
Author :
Liu, Chunfeng ; Shu, Yantai ; Yang, Wucheng ; Yang, Oliver W W
Author_Institution :
Dept. of Comput. Sci., Tianjin Univ., Tianjin
Abstract :
Research on the effect of selfish node in wireless ad hoc networks has received considerable attention recently. However, most work concentrates on simulation study, but lacks an analytical study to accurately predict the throughput. This paper investigates the saturated and non-saturated load throughputs of IEEE 802.11 DCF (distributed coordinated function) in the presence of a selfish node. Using a modified Markov model, we have derived the throughput of a node under various traffic loads in the PHY (PHYsical) layer using DSSS (direct sequence spread spectrum) and the wireless MAC (medium access layer). The analytical model and throughput results have been validated by simulations.
Keywords :
Markov processes; access protocols; ad hoc networks; spread spectrum communication; telecommunication traffic; wireless LAN; IEEE 802.11; direct sequence spread spectrum; distributed coordinated function; medium access layer; modified Markov model; selfish node; traffic loads; wireless ad hoc networks; Access protocols; Analytical models; Computational modeling; Media Access Protocol; Physical layer; Predictive models; Spread spectrum communication; Telecommunication traffic; Throughput; Wireless networks;
Conference_Titel :
Global Telecommunications Conference, 2008. IEEE GLOBECOM 2008. IEEE
Conference_Location :
New Orleans, LO
Print_ISBN :
978-1-4244-2324-8
DOI :
10.1109/GLOCOM.2008.ECP.253
