Abstract
In this paper, we estimated the influence of capture effect over the capacity of IEEE 802.11b DCF within a single picocell. The channel utilization is examined analytically by introducing two capture models based on Rayleigh-distributed envelopes of the captured and the interfering frames divided into two local-mean power classes. Simulations in a pure Rician-faded channel depict the conditions under which both Rayleigh-faded capture models can be used to accurately predict the peak network capacity. Unlike the RTS/CTS “handshake” access mode, Basic access mode is significantly sensitive to the capture ratio, i.e., the receiver design. The packet size threshold over which it is convenient to switch from Basic to RTS/CTS “handshake” access scheme is also sensitive to the capture effect.
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Hadzi-Velkov, Z., Spasenovski, B. On the Capacity of IEEE 802.11 DCF with Capture in Multipath-Faded Channels. International Journal of Wireless Information Networks 9, 191–199 (2002). https://doi.org/10.1023/A:1016037711861
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DOI: https://doi.org/10.1023/A:1016037711861