An analysis of CSMA/CA protocol with capture in wireless LANs

In this paper, we use a discrete Markov chain model to analyze the throughput-delay performance of the CSMA/CA protocol in WLANs under the influence of the capture effect. The stations are power-controlled, so we consider the possibility of frame capture of only a single station which is exposed to...

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Bibliographic Details
Main Authors: Hadzi-Velkov, Z., Spasenovski, B.
Format: Conference Proceeding
Language:English
Subjects:
Delay estimation
Local area networks
Multiaccess communication
Performance analysis
Rayleigh channels
Receivers
Sampling methods
Throughput
Wireless application protocol
Wireless LAN
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Description
Summary:In this paper, we use a discrete Markov chain model to analyze the throughput-delay performance of the CSMA/CA protocol in WLANs under the influence of the capture effect. The stations are power-controlled, so we consider the possibility of frame capture of only a single station which is exposed to Rayleigh fading. By sampling the backoff deferral interval with fixed probability p (estimated in saturation conditions), we were able to determine the upper theoretical limits of channel utilization and mean delay for different traffic loads and different capture ratios.
ISSN:1525-3511
1558-2612
DOI:10.1109/WCNC.2003.1200561