SER improvisation of MIMO-MRC system over Weibull-Gamma fading channel

Abstract

In multiple-input multiple-output (MIMO) systems, symbol error rate (SER) performance of Gamma shadowed Weibull multipath fading channel has not been investigated in existing literature. In this paper, MIMO system is realized with maximal ratio combining (MRC) technique that operates over Weibull-Gamma (WG) fading channel where WG forms a generic distribution. Higher order modulation like 16-phase shift keying (16-PSK) and 16quadrature amplitude modulation (16-QAM) are used with MIMO-MRC for the analysis of proposed system. Simulation and analytical results show that by increasing the values of fading parameters (β and m), SER performance can be improved. Also16-QAM gives better SER performance than 16-PSK. Keywords-Multiple-input multiple-output (MIMO); symbol error rate (SER); maximal ratio combining (MRC); Weibull-Gamma (WG) fading; phase shift keying (PSK); quadrature amplitude modulation (QAM).I.

Comparing f-OFDM and OFDM Performance for MIMO Systems Considering a 5G Scenario

“…In this method, the signals from each antenna are summed, and the signal branch is weighted by a factor proportional to its power level [13]. In this way, the branches with stronger signal are amplified, while the ones with lower signal are attenuated.…”

Comparing f-OFDM and OFDM Performance for MIMO Systems Considering a 5G Scenario

“…In this work we consider full channel knowledge. 1) Maximum Ratio Combining (MRC): In this method, the signals from each antenna are summed, and the signal branch is weighted by a factor proportional to its power level [13]. In this way, the branches with stronger signal are amplified, while the ones with lower signal are attenuated.…”

ASEP of MIMO System with MMSE-OSIC Detection over Weibull-Gamma Fading Channel Subject to AWGGN

“…Then, using [36,Equation (2.3)], J is expressed in terms of the FHF of two variables known as the bivariate Fox-H function (BFHF). Substituting (19) and (20) in (16), the ASEP of -QAM is computed. This ASEP expression is given for rectangular ( ̸ = Q ), square ( = Q ) QAM in arbitrary WG fading with AWGGN.…”

“…Also, it is important to resolve a number of practical problems with interference effects in MIMO wireless communications. The composite channel models such as Rayleigh-LN, shadowed-Rician, Gamma-Gamma, K, generalized-K, correlated shadowed-− [11][12][13][14][15][16][17], and comparatively newfangled Weibull-Gamma (WG) [18,19] are widely used to incorporate both small scale fading and shadowing. Gamma models are simpler and more accurate than LN models and hence preferred in recent approaches.…”