Title :
Capture Effect in the IEEE 802.11 WLANs with Rayleigh Fading, Shadowing, and Path Loss
Author :
Li, Xiaolong ; Zeng, Qing-An
Author_Institution :
Dept. of Electr. Comput. & Eng. Comput. Sci., Cincinnati Univ., OH
Abstract :
In this paper, we use a discrete Markov chain model to analyze the throughput of CSMA/CA protocol in a wireless local area network (WLAN) considering the capture phenomenon, which means the packet with the strongest power may capture the receiver even in the presence of other overlapping packets. The model of capture effect over the theoretical throughput of CSMA/CA protocol in the presence of Rayleigh fading, shadowing, and path loss are obtained and compared with the model without capture effect
Keywords :
Markov processes; Rayleigh channels; carrier sense multiple access; radio receivers; telecommunication congestion control; wireless LAN; CSMA-CA protocol; IEEE 802.11 WLAN; Rayleigh fading; capture effect; carrier sense multiple access; collision avoidance; discrete Markov chain model; receiver; shadowing; wireless local area network; Access protocols; Ad hoc networks; Media Access Protocol; Multiaccess communication; Rayleigh channels; Shadow mapping; Throughput; Wireless LAN; Wireless application protocol; Working environment noise;
Conference_Titel :
Wireless and Mobile Computing, Networking and Communications, 2006. (WiMob'2006). IEEE International Conference on
Conference_Location :
Montreal, Que.
Print_ISBN :
1-4244-0494-0
DOI :
10.1109/WIMOB.2006.1696386
