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Performance Improvement in Spatially Multiplexed MIMO Systems over Weibull-Gamma Fading Channel by Keerti Tiwari; Davinder S. Saini; Sunil V. Bhooshan is a Engineering article available to read on EtoBox.

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In multiple-input multiple-output (MIMO) systems, spatial demultiplexing at the receiver has its own significance. Thus, several detection techniques have been investigated. There is a tradeoff between computational complexity and optimal performance in most of the detection techniques. One of the detection techniques which gives improved performance and acceptable level of complexity is ordered successive interference cancellation (OSIC) with minimum mean square error (MMSE). However, optimal performance can be achieved by maximum likelihood (ML) detection but at a higher complexity level. Therefore, MMSE-OSIC with candidates (OSIC 2 ) detection is recommended as a solution. In this paper, spatial multiplexed (SM) MIMO systems are considered to evaluate error performance with different detection techniques such as MMSE-OSIC, ML and MMSE-OSIC 2 in a composite fading i. e. Weibull-gamma (WG) fading environment. In WG distribution, Weibull and gamma distribution represent multipath and shadowing effects, respectively. Simulation results illustrate that MMSE-OSIC 2 detection technique gives the improved symbol error rate (SER) performance which is similar to ML performance and its com

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Author

Keerti Tiwari; Davinder S. Saini; Sunil V. Bhooshan

Publisher

Walter de Gruyter GmbH

Published

2016

Language

EN

Field

Engineering (Physical Sciences)