Title :
Coverage Probability Analysis of Heterogeneous Cellular Networks in Rician/Rayleigh Fading Environments
Author :
Xiaobin Yang ; Fapojuwo, Abraham O.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Calgary, Calgary, AB, Canada
Abstract :
This letter analyzes the coverage probability performance of heterogeneous cellular network (HCN) in a Rician/Rayleigh fading environment. First, an exponential-series approximation, potentially converging to the exact value and with reduced computational complexity, is proposed for the desired signal power statistics under Rician fading. Then, an analytical approach for evaluating the coverage probability of HCNs under Rician fading for desired signal and Rayleigh fading for interfering signals is presented and verified through simulation. Numerical results demonstrate considerable improvement in coverage probability when the desired signal is Rician faded, compared to that obtained when it is Rayleigh faded.
Keywords :
Rayleigh channels; Rician channels; approximation theory; cellular radio; probability; Rician-Rayleigh fading environment; computational complexity; coverage probability performance; exponential-series approximation; heterogeneous cellular networks; Approximation methods; Interference; Macrocell networks; Microcell networks; Rayleigh channels; Rician channels; Heterogeneous cellular networks; Rayleigh fading; Rician fading; coverage probability; inter-tier interference;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2015.2430346
