Title :
Frame delay distribution analysis of IEEE 802.11 networks using Signal Flow Graphs
Author :
Jennen, Ralf ; Max, Sebastian ; Walke, Bernhard
Author_Institution :
ComNets Res. Group, RWTH Aachen Univ., Aachen, Germany
Abstract :
Frame delay variance in CSMA/CA networks is large. Wireless applications may require both, limited mean delay and limited delay jitter. These parameters can be derived easily from cumulative distribution function (CDF) of frame delay. This paper applies Signal Flow Graphs (SFGs) to calculate the CDF of frame delay in IEEE 802.11 DCF WLANs. SFGs allow to establish a mathematical WLAN model for precise numerical calculation of frame delay based on generating functions. Both, medium reservation based on RTS/CTS and no reservation are studied and link adaptation is taken into account, too. Stations are assumed to always have a frame waiting for transmission. Our mathematical analysis results are compared for typical WLAN application scenarios to simulation results gained from the openWNS system level simulator.
Keywords :
carrier sense multiple access; interference; jitter; signal flow graphs; wireless LAN; CSMA/CA networks; IEEE 802.11 networks; WLANs; cumulative distribution function; frame delay distribution analysis; limited delay jitter; limited mean delay; signal flow graphs; wireless LAN; Analytical models; Data communication; Delay; IEEE 802.11 Standards; Multiaccess communication; Radiation detectors; Wireless LAN; Protocol; Simulation; Wireless LAN;
Conference_Titel :
Personal Indoor and Mobile Radio Communications (PIMRC), 2010 IEEE 21st International Symposium on
Conference_Location :
Instanbul
Print_ISBN :
978-1-4244-8017-3
DOI :
10.1109/PIMRC.2010.5671583
