Analysis of CSMA/CA Systems under Carrier Sensing Error: Throughput, Delay and Sensitivity

Jo Woon Chong, Youngchul Sung, Dan Keun Sung
2008 IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference  
In this paper, the performance of the carrier sense multiple access/ collision avoidance (CSMA/CA) protocol under the presence of carrier sensing error is analyzed. Based on our previous work [1], we extend the results to n-user case (n>2), and analyze the sensitivity of the throughput with respect to the key physical-layer parameter, the sensing threshold, via a cross-layer approach. The result provide guidelines about how to operate the CSMA/CA considering imperfect sensing at physical layer.
more » ... It is shown that the throughput sensitivity highly depends on the ratio of the contention window size W to the frame length L, and the throughput is sensitive to the design of the sensing threshold when W/L is either small or large. This full text paper was peer reviewed at the direction of IEEE Communications Society subject matter experts for publication in the IEEE "GLOBECOM" 2008 proceedings. 978-1-4244-2324-8/08/$25.00
doi:10.1109/glocom.2008.ecp.944 dblp:conf/globecom/ChongSS08 fatcat:zokdqs4ekbgs7afd4opwh6trou