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Performance Analysis Model of IEEE 802.11 CSMA/CA for Multi-BSS Environment
Description
The Markov chain based model by Bianchi for IEEE802.11 distributed controlled access is a highly accurate analytical tool for estimating the system throughput when a single Basic Service Set (BSS) network operates in isolation. However, with the increase of wireless LAN access points being deployed on the same area, an environment with multiple BSS interfering with each other has become the default network scenario. The purpose of this work is to extend the single BSS Markov chain model into a multi-BSS model by incorporating the influence of STAs’ interference range and carrier sense range to their own transmission and collision probabilities. We verify the proposed multi-BSS analytical model using the latest version of the ns3 simulator which has recently supported accurate PHY abstractions for multi-BSS simulation. We show that the proposed model has a high accuracy (within 1%) independent of the multi-BSS network topology.
Journal
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- 2020 IEEE 31st Annual International Symposium on Personal, Indoor and Mobile Radio Communications
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2020 IEEE 31st Annual International Symposium on Personal, Indoor and Mobile Radio Communications 1-7, 2020-08-01
IEEE
