Journal ArticleDOI
Sum of gamma variates and performance of wireless communication systems over Nakagami-fading channels
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TLDR
A PDF-based approach for the performance analysis of maximal-ratio combining and postdetection equal-gain combining diversity techniques as well as cochannel interference of cellular mobile radio systems over Nakagami (1960)-fading channels with arbitrary parameters is provided.Abstract:
Capitalizing on the Moschopoulos (1985) single gamma series representation of the probability density function (PDF) of the sum of gamma variates, we provide a PDF-based approach for the performance analysis of maximal-ratio combining and postdetection equal-gain combining diversity techniques as well as cochannel interference of cellular mobile radio systems over Nakagami (1960)-fading channels with arbitrary parameters. Aside from putting under the same umbrella many of the past results obtained via characteristic function (CF) or moment generating function (MGF)-based approaches, the proposed approach also allows the derivation of additional performance measures, which are harder to analyze via CF or MGF-based approaches.read more
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Journal ArticleDOI
Modeling Heterogeneous Network Interference Using Poisson Point Processes
TL;DR: This paper proposes to analyze downlink performance in a fixed-size cell, which is inscribed within a weighted Voronoi cell in a Poisson field of interferers, using recent applications of stochastic geometry to analyze cellular systems.
Journal ArticleDOI
Multiuser MIMO in Distributed Antenna Systems With Out-of-Cell Interference
TL;DR: Several downlink multiuser multiple input multiple output (MIMO) DAS strategies are proposed and compared in terms of per-user throughput and area spectral efficiency and approximations of the ergodic rate are proposed to facilitate rapid simulation and design space exploration.
Journal ArticleDOI
Finite-SNR Diversity–Multiplexing Tradeoff for Correlated Rayleigh and Rician MIMO Channels
TL;DR: A nonasymptotic framework for the diversity-multiplexing tradeoff of a multiple-input-multiple-output (MIMO) wireless system at finite signal-to-noise ratios (SNRs) is presented, which is useful in MIMO system design for realistic SNRs and propagation environments.
Journal ArticleDOI
On multivariate Rayleigh and exponential distributions
TL;DR: Expressions for multivariate Rayleigh and exponential probability density functions (PDFs) generated from correlated Gaussian random variables can serve as a useful tool in the performance analysis of digital modulation over correlated Rayleigh-fading channels using diversity combining.
Journal ArticleDOI
Closed-form statistics for the sum of squared Nakagami-m variates and its applications
TL;DR: The proposed formulation significantly improves previously published results, which are either in the form of infinite sums or higher order derivatives of the fading parameter m, and can be applied to the performance analysis of diversity combining receivers operating over Nakagami-m fading channels.
References
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A table of integrals
TL;DR: Basic Forms x n dx = 1 n + 1 x n+1 (1) 1 x dx = ln |x| (2) udv = uv − vdu (3) 1 ax + bdx = 1 a ln|ax + b| (4) Integrals of Rational Functions
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TL;DR: The book gives many numerical illustrations expressed in large collections of system performance curves, allowing the researchers or system designers to perform trade-off studies of the average bit error rate and symbol error rate.
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TL;DR: The Principles of Mobile Communication, Third Edition stresses the "fundamentals" of physical-layer wireless and mobile communications engineering that are important for the design of "any" wireless system.
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The m-Distribution—A General Formula of Intensity Distribution of Rapid Fading
TL;DR: In this article, the authors summarized the principal results of a series of statistical studies in the last seven years on the intensity distributions due to rapid fading, and presented an extremely simplified method for estimating the improvement available from various systems of diversity reception.