Diversity Enhancement of MIMO System with GA Optimized Linear Precoding of Orthogonal Space-Time Block Codes

Authors

Harsha Gurdasani
JAIN(deemed -to-be) UNIVERSITY, BANGALORE, KARNATAKA, INDIA
A G Ananth
NMAMIT, NITTE, MANGALORE, KARNATAKA, INDIA
N Thangadurai
JAIN(deemed -to-be) UNIVERSITY, BANGALORE, KARNATAKA, INDIA
DOI: https://doi.org/10.52549/ijeei.v9i2.2615
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Published: 24-06-2021 • Issue: Vol. 9 No. 2: June 2021 • Section: Electronics_&_Signal_Processing

Abstract

The MIMO (Multiple-Input Multiple-Output) systems in the field of digital communications make it possible to improve data transmission according to two main parameters which are often antagonistic: the information rate and the transmission reliability estimated in average binary error probability (BEP) term. With such systems, CSI (Channel State Information) on transmission is a key point for reducing the BEP thanks to different power allocation strategies. Thus, a linear precoder on transmission associated with a linear decoder on reception can optimize a particular criterion thanks to this information. This paper proposes a MIMO system with precoded orthogonal space-time block codes (OSTBC) optimized by Genetic Algorithm with ZF and MMSE equalization. The performance evaluation is achieved by BER vs. SNR graphs.

Keywords: Alamouti; BEP STBC; OSTBC; GA; MMSE; ZF

Author Biographies

Harsha Gurdasani
RESEARCH SCHOLAR,DEPARTMENT OF ELECTRONICS & COMMUNICATION ENGINEERING
A G Ananth
PROFESSOR, DEPARTMENT OF ELECTRONICS & COMMUNIC ATION ENGINEERING
N Thangadurai
PROFESSOR, DEPARTMENT OF ELECTRONICS & COMMUNICATION ENGINEERING

How to Cite

[1]
H. Gurdasani, A. G. Ananth, and N. Thangadurai, “Diversity Enhancement of MIMO System with GA Optimized Linear Precoding of Orthogonal Space-Time Block Codes”, IJEEI, vol. 9, no. 2, pp. 512–520, Jun. 2021, doi: 10.52549/ijeei.v9i2.2615.