Title :
A Model of the IEEE 802.11 DCF in Presence of Non Ideal Transmission Channel and Capture Effects
Author :
Daneshgaran, F. ; Laddomada, M. ; Mesiti, F. ; Mondin, M.
Author_Institution :
California State Univ., Los Angeles
Abstract :
In this paper, we provide a throughput analysis of the IEEE 802.11 protocol at the data link layer in non- saturated traffic conditions taking into account the impact of both transmission channel and capture effects in Rayleigh fading environment. Impacts of both non-ideal channel and capture become important in terms of the actual observed throughput in typical network conditions whereby traffic is mainly unsaturated, specially in an environment of high interference. We extend the multi-dimensional Markovian state transition model characterizing the behavior at the MAC layer by including transmission states that account for packet transmission failures due to errors caused by propagation through the channel, along with a state characterizing the system when there are no packets to be transmitted in the buffer of a station.
Keywords :
Markov processes; Rayleigh channels; access protocols; packet radio networks; telecommunication traffic; wireless LAN; wireless channels; IEEE 802.11 protocol; MAC layer; Rayleigh fading environment; data link layer; distributed coordination function; multidimensional Markovian state transition model; non ideal transmission channel; nonsaturated traffic conditions; packet transmission failures; throughput analysis; Access protocols; Counting circuits; Fading; Interference; Media Access Protocol; Rayleigh channels; Telecommunication traffic; Throughput; Traffic control; Wireless LAN;
Conference_Titel :
Global Telecommunications Conference, 2007. GLOBECOM '07. IEEE
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4244-1042-2
Electronic_ISBN :
978-1-4244-1043-9
DOI :
10.1109/GLOCOM.2007.969
