To keep massive MIMO systems cost-efficient, power amplifiers with rather small output dynamic ranges are employed. They may distort the transmit signal and degrade the performance. This paper proposes a distortion aware precoding scheme for realistic scenarios in which RF chains have nonlinear characteristics. The proposed scheme utilizes the method of regularized least-squares (RLS) to jointly compensate the channel impacts and the distortion imposed by the RF chains. To construct the designed transmit waveform with low computational complexity, an iterative algorithm based on approximate message passing is developed. This algorithm is shown to track the achievable average signal distortion of the proposed scheme tightly, even for practic...
Abstract: In this paper we consider massive multiple input multiple output (MIMO) systems that empl...
techniques have been proposed as a solution to satisfy many requirements of next generation cellular...
techniques have the potential to bring tremendous improvements in spectral efficiency to future comm...
peer reviewedTo keep massive MIMO systems cost-efficient, power amplifiers with rather small output ...
We introduce a framework for linear precoder design over a massive multiple-input multiple-output do...
International audienceThis letter investigates the compensation of the power amplifier (PA) nonlinea...
This paper considers the adaptive predistortion of the nonlinear distortions in a Radio over Fiber (...
A high capacity wireless communication system requires careful design to minimize interference and d...
Development of linear modulation schemes has opened the way for spectrally efficient, high speed dig...
International audienceMassive multiple-input multiple-output (MIMO) techniques have the potential to...
High efficiency and good linearity are two important characteristics of transmitters in future wirel...
International audience—Large-scale MIMO systems can yield a substantial improvements in spectral eff...
Regularized zero forcing (RZF) precoding is an efficient linear precoding scheme for combating inter...
This work aims at designing a low-complexity precoding technique in the downlink of a large-scale mu...
International audience—Massive multiple-input multiple-output (MIMO) techniques have been proposed a...
Abstract: In this paper we consider massive multiple input multiple output (MIMO) systems that empl...
techniques have been proposed as a solution to satisfy many requirements of next generation cellular...
techniques have the potential to bring tremendous improvements in spectral efficiency to future comm...
peer reviewedTo keep massive MIMO systems cost-efficient, power amplifiers with rather small output ...
We introduce a framework for linear precoder design over a massive multiple-input multiple-output do...
International audienceThis letter investigates the compensation of the power amplifier (PA) nonlinea...
This paper considers the adaptive predistortion of the nonlinear distortions in a Radio over Fiber (...
A high capacity wireless communication system requires careful design to minimize interference and d...
Development of linear modulation schemes has opened the way for spectrally efficient, high speed dig...
International audienceMassive multiple-input multiple-output (MIMO) techniques have the potential to...
High efficiency and good linearity are two important characteristics of transmitters in future wirel...
International audience—Large-scale MIMO systems can yield a substantial improvements in spectral eff...
Regularized zero forcing (RZF) precoding is an efficient linear precoding scheme for combating inter...
This work aims at designing a low-complexity precoding technique in the downlink of a large-scale mu...
International audience—Massive multiple-input multiple-output (MIMO) techniques have been proposed a...
Abstract: In this paper we consider massive multiple input multiple output (MIMO) systems that empl...
techniques have been proposed as a solution to satisfy many requirements of next generation cellular...
techniques have the potential to bring tremendous improvements in spectral efficiency to future comm...