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A precoder based on the exact optimization of the minimum Euclidean distance dmin between signal points at the receiver side is proposed for MIMO-OFDM systems using a 16-QAM modulation. Assuming that channel state information (CSI) can be made available at the transmitter, the channel is diagonalized and a precoder can be derived. A numerical approach shows… (More)

- Quoc-Tuong Ngo, Olivier Berder, Pascal Scalart
- IEEE Transactions on Signal Processing
- 2012

From the feedback of the channel state information (CSI), precoding techniques improve the performance of multiple-input multiple-output (MIMO) systems by optimizing various criteria. In this correspondence, an efficient precoder that maximizes the minimum distance (<i>d</i><sub>min</sub>) of two received vectors is studied. This criterion leads to a… (More)

- Quoc-Tuong Ngo, Olivier Berder, Pascal Scalart
- ICC
- 2010

This paper proposes an efficient sub-optimal MIMO linear precoder based on the maximization of minimum distance for three virtual suchannels. A new virtual MIMO channel representation with two channel angles allows the parameterization of the linear precoder and the optimization of the distance between signal points at the received constellation. To… (More)

- Quoc-Tuong Ngo, Olivier Berder, Pascal Scalart
- EURASIP J. Adv. Sig. Proc.
- 2013

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… (More)

- Quoc-Tuong Ngo, Olivier Berder, Pascal Scalart
- IEEE Trans. Wireless Communications
- 2012

Through a feedback link, the channel state information acquired at the receiver is known at the transmitter and MIMO precoding techniques can be applied according to various criteria. In this paper, an efficient linear precoder based on the maximization of the minimum Euclidean distance between two received data vectors for three data-stream MIMO spatial… (More)

- Quoc-Tuong Ngo, Olivier Berder, Pascal Scalart
- WCNC
- 2011

Not only the minimum Euclidean distance but also the number of neighbors providing the dmin in the received constellation has an important role in reducing the error probability when Maximum Likelihood detection is considered. Assuming that the channel-state-information is available at the transmitter, a new precoder in which the rotation parameter has no… (More)

- Quoc-Tuong Ngo
- 2012

- Quoc-Tuong Ngo, Olivier Berder, Pascal Scalart
- EUSIPCO
- 2011

A new precoding strategy, which considers not only the minimum Euclidean distance but also the number of neighbors providing the distance dmin, is proposed. Firstly, a new parameterized form of Neighbor-dmin precoder is presented, where all angles containing the phase are assumed to be zero to reduce the number of difference vectors providing dmin. The… (More)

- Quoc-Tuong Ngo, Olivier Berder, Pascal Scalart
- 2011 IEEE Wireless Communications and Networking…
- 2011

Not only the minimum Euclidean distance but also the number of neighbors providing the d<inf>min</inf> in the received constellation has an important role in reducing the error probability when Maximum Likelihood detection is considered. Assuming that the channel-state-information is available at the transmitter, a new precoder in which the rotation… (More)

- Quoc-Tuong Ngo, Olivier Berder, Pascal Scalart
- 2011 19th European Signal Processing Conference
- 2011

A new precoding strategy, which considers not only the minimum Euclidean distance but also the number of neighbors providing the distance d<sub>min</sub>, is proposed. Firstly, a new parameterized form of Neighbor-d<sub>min</sub> precoder is presented, where all angles containing the phase are assumed to be zero to reduce the number of difference vectors… (More)

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