Title :
A New Method for Analyzing Nonsaturated IEEE 802.11 DCF Networks
Author_Institution :
Sch. of Inf. Sci. & Eng., Shandong Univ., Jinan, China
Abstract :
This letter presents a new method for analyzing nonsaturated IEEE 802.11 DCF networks: the behavior of each station in a WLAN is modeled as a Markov renewal process, and the throughput expression is derived from the traffic conservation principle for queueing systems in equilibrium. The Markov renewal process model simplifies the derivation of the closed form solution for the probability that each station attempts to transmit in a slot. The throughput expression shows a relatively explicit relation between the throughput and the offered load. The accuracy of the method is verified by ns-2 simulation.
Keywords :
Markov processes; queueing theory; wireless LAN; Markov renewal process; WLAN; nonsaturated IEEE 802.11 DCF network; ns-2 simulation; queueing system; throughput expression; traffic conservation principle; Analytical models; IEEE 802.11 Standards; Load modeling; Markov processes; Mathematical model; Throughput; Wireless LAN; IEEE 802.11 DCF; Markov renewal process; performance analysis; renewal theory;
Journal_Title :
Wireless Communications Letters, IEEE
DOI :
10.1109/WCL.2013.012513.120826
