What is it about?
A user-centric wireless cellular network has recently emerged as a pragmatic network model for better reflecting the traffic demand-based deployment. To the best of author’s knowledge, however, the coverage probability with composite κ-μ shadowed and lognormal shadowed fading (termed the DS fading)in downlink user-centric wireless cellular networks is unknown. Most importantly, another significant performance metric, i.e. the average rate, until now has not been investigated. To study the influence of DS fading on performance metrics and avoid unnecessary handovers caused by the random fluctuation of the lognormal shadowing at the cell-association phase, this work considers the downlink user-centric wireless cellular network with the DS fading and the closest cell-association rule. Further, the closed-form expressions for the coverage probability and average rate in downlink user-centric wireless cellular networks are successfully derived. Numerical results demonstrate that the user-centric wireless cellular network not only provides a high coverage probability but also promotes the average rate compared to the Poisson point process-based network with independent uniformly distributed users.
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Why is it important?
Compared to the prior work for user-centric wireless cellular networks with DS fading, this paper provides a prominent extension including i) the fading channel for the desired link is a real composite fading and shadowing channel due to the application of the closest cell-association rule, ii) another significant performance metric, i.e. the average rate under the closest and general cell-association rules are respectively investigated, and iii) the differences of the performance metrics such as the coverage probability and average rate obtained by the two types of the cell-association rules are concluded and validated through simulations.
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This page is a summary of: Coverage probability and average rate of downlink user-centric wireless cellular networks with composite κ-μ shadowed and lognormal shadowed fading, IET Communications, July 2019, the Institution of Engineering and Technology (the IET), DOI: 10.1049/iet-com.2019.0220.
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