In this paper, a precoding scheme for interference mitigation based only on local channel state information is proposed for downlink multicell multiantenna systems with joint transmission. The investigated scheme places interference components at the receivers coming from the different transmitters in predefined subspaces, so that they are completely or approximately cancelled. It is shown how ...

Large-scale antenna array techniques are key enablers for modern wireless communication systems. Channel state information (CSI) is indispensable large-scale multi-antenna systems, but challenging to obtain. To tackle this issue, in paper we propose a unified precoding and pilot design frame-work, that allows minimal precoding-sensitive modified CSI (mCSI) be collected. This results significant...

Abstract—The performance of the single-carrier (SC) transmission in a frequency-selective fading channel degrades due to a severe inter-symbol interference (ISI). By using frequency-domain equalization (FDE) based on the minimum mean square error (MMSE) criterion at a receiver, the bit error rate (BER) performance of the SC transmission can be significantly improved. Recently, Tomlinson-Harashi...

This paper considers symbol-level precoding (SLP) for multiuser multiple-input single-output (MISO) downlink. SLP is a nonlinear precoding scheme that utilizes symbol constellation structures. It has been shown that SLP can outperform the popular linear beamforming scheme. In this work we reveal a hidden connection between SLP and linear beamforming. We show that under an energy minimization de...

Abstruef-This paper addresses the design of a novel scheme that combines error control coding (EC) and unitary precoding (UP) in order to obtain high diversity gains in OFDM systems with low complexity. The overall diversity of the proposed system is shown to be the product of the individual diversities achievable by the error control coding and by the unitary precoding, while the complexity is...

A new precoding-based intersession network coding (NC) scheme has recently been proposed, which applies the interference alignment technique, originally devised for wireless interference channels, to the 3-unicast problem of directed acyclic networks. The main result of this work is a graph-theoretic characterization of the feasibility of the 3-unicast interference alignment scheme. To that end...

A multi-antenna, greedy, iterative, and quantized (MAGIQ) precoding algorithm is proposed for downlink channels. MAGIQ allows a straightforward integration with orthogonal frequency-division multiplexing (OFDM). MAGIQ is compared to three existing algorithms in terms of information rates and complexity: quantized linear precoding (QLP), SQUID, and an ADMM-based algorithm. The information rate i...

For successfully analyzing the signal protection in the case of VDSL transmission on metallic homogeneous symmetric lines, it is necessary to know the basic features of the VDSL environment and the main properties of the techniques able to eliminate the negative influences on the transmitted signals. This article briefly discusses the proposed coding and precoding techniques and introduces a si...

Multiantenna wireless systems have shown great promise in achieving high rates. We consider an OFDM multiple transmit/receive antenna system. We propose a linear non-redundant block precoding scheme, that is applied at the input of the OFDM system. The coding spreads the symbols of each user over all subcarriers, thus increasing multipath diversity, and at the same time introduces some structur...

In millimeter-wave (mmWave) systems, hybrid precoding/combining architectures are an attractive low-complexity alternative to the use of fully digital precoding. This is because reduction in number Radio-Frequency (RF) and mixed-signal hardware components. Hybrid design involves a combination analog processing that enables both beamforming spatial multiplexing gains mmWave systems. paper presen...