General minimum Euclidean distance-based precoder for MIMO wireless systems

General minimum Euclidean distance-based precoder for MIMO wireless systems

In this article, we investigate the linear precoder based on the maximization of the minimum Euclidean distance between two received data vectors. This new precoding matrix is expressed as the product of a power allocation matrix and an input-shaping matrix. The input-shaping matrix is selected as a normalized discrete Fourier transform-matrix, and the optimal power allocation depends on the ch...

Minimum Ber Diagonal Precoder for Mimo Systems

We report on a simplified representation of Multi-Input Multi-Output (MIMO) systems and propose a Minimum Bit Error Rate (MBER) diagonal precoder. Assuming that channel information can be available at the transmitter, we show that the proposed representation decouples the MIMO channel into parallel subchannels, which greatly facilitates and speeds up further processing. Using traditional criter...

Optimal Precoder for MIMO Schemes in Indoor Wireless VLC Systems

In multiple-input multiple-output (MIMO) indoor visible light communication (VLC) systems, channel gains are highly correlated. As a result, the bit error rate (BER) of the system is degraded. To improve the BER performance of the system, we propose two precoders, namely, an optimal precoder and a diagonal precoder for MIMO schemes in VLC systems with Nt light emitting diodes (LED) and Nr photo...

COMPARISON OF dmin-BASED PRECODER WITH OSTBC AND MAXIMUM SNR-BASED PRECODER FOR MIMO SYSTEMS

In order to compare the performances of three transmission schemes of keyinterest able to reach the maximum diversity order, guarantee of robust transmission, we used a dual-polarization channel model to take into account polarization diversity and transmit/receive correlation. These schemes under study were i)two systems using full channel state information (CSI) at the transmitter side (Tx-CS...

Généralisation des précodeurs MIMO basés sur la distance euclidienne minimale. (Generalized minimum Euclidean distance based precoders for MIMO spatial multiplexing systems)