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Lattice reduction aided improved signal detection for MIMO system

MD ANOWAR HOSSAIN1,* , SAJJAD UR REHMAN1

Affiliation

  1. Department of Electrical Engineering, King Saud University, Riyadh, Kingdom of Saudi Arabia

Abstract

This paper presents an improved lattice reduction aided MMSE detection based on MIMO system. The proposed detection technique reduces the orthogonality defect of the MIMO channel matrix based on LLL algorithm and the Gram-Schmidt orthogonalization procedure. BER performance of MMSE detector with and without lattice reduction is analyzed using LLL algorithm for 4×4 and 8×8 MIMO system. The proposed detection technique can achieve more reliable estimation, compared to the conventional lattice reduction aided detection..

Keywords

Multiple-input Multiple-output (MIMO), Lattice reduction, Gram-Schmidt Orthogonalization (GSO), Lenstra-Lenstra- Lovász (LLL) algorithm.

Submitted at: Sept. 16, 2014
Accepted at: Nov. 13, 2014

Citation

MD ANOWAR HOSSAIN, SAJJAD UR REHMAN, Lattice reduction aided improved signal detection for MIMO system, Journal of Optoelectronics and Advanced Materials Vol. 16, Iss. 11-12, pp. 1442-1446 (2014)