Analysis of error performance of two modulation schemes in Rayleigh fading channel

2003 ◽  
Author(s):  
S.L. Drakul ◽  
G.M. Drakul
Keyword(s):  
Fading Channel ◽  
Rayleigh Fading ◽  
Rayleigh Fading Channel ◽  
Error Performance ◽  
Modulation Schemes ◽  
Analysis Of Error

scholarly journals New 3D 16-Ary Signal Constellations and Their Symbol Error Probabilities in AWGN and Rayleigh Fading Channels

2018 ◽  
Vol 2018 ◽  
pp. 1-6
Author(s):  
Zhenxing Chen ◽  
Jiaheng Liu ◽  
Shuang Li ◽  
Seog Geun Kang
Keyword(s):  
Fading Channels ◽  
Fading Channel ◽  
Euclidean Distance ◽  
Rayleigh Fading ◽  
Additive White Gaussian Noise ◽  
Three Dimensional ◽  
Rayleigh Fading Channel ◽  
Error Performance ◽  
Signal Constellations ◽  
Error Probabilities

Two three-dimensional (3D) 16-ary signal constellations having extended lattice structures are presented in this paper. The theoretical symbol error probabilities (SEPs) of the new constellations in additive white Gaussian noise (AWGN) and Rayleigh fading channel are derived. Computer simulation confirms that the closed-form expressions for average SEPs of the constellations in the AWGN channel are very accurate. The theoretical SEP upper bounds in the Rayleigh fading channel are very tight. Since the presented constellations have larger minimum Euclidean distance (MED) than the conventional one, error performance can be improved up to 0.9 dB in an AWGN environment. Hence, the proposed constellations and their theoretical analysis can be used as a reference for the development of a wireless communication system with 3D signal constellations.

scholarly journals Low-complexity Detectors for Cyclic Structured Space-time Block Coded Spatial Modulation over a Slow Rayleigh Fading Channel

2020 ◽  
pp. 818-825
Author(s):  
Dickson O. Egbune ◽  
◽  
Babatunde S. Adejumobi ◽  
Isaac O. A. Omeiza ◽  
Frank A. Ibikunle ◽  
...  
Keyword(s):  
Computational Complexity ◽  
Fading Channel ◽  
Rayleigh Fading ◽  
Low Complexity ◽  
Space Time ◽  
Rayleigh Fading Channel ◽  
Spatial Modulation ◽  
Time Block ◽  
Error Performance ◽  
Average Bit Error Probability

This paper presents low-complexity detectors for space-time block coded spatial modulation with cyclic structured (STBC-CSM) codeword over a quasi-static frequency-flat Rayleigh fading channel. Two low-complexity detectors are proposed, which reduce the computational complexity of the STBC-CSM maximum-likelihood (ML) detector and demonstrate near-ML error performance of STBC-CSM. Furthermore, Monte-Carlo simulation results for the proposed schemes are presented to validate the theoretical Average Bit Error Probability (ABEP) of STBC-CSM. The proposed low-complexity detectors can achieve a 99% reduction in computational complexity, when high order M-ary (M > 64) amplitude and/or phase modulation symbols are employed for STBC-CSM.

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