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This paper is concerned with a wireless system operating in MIMO fading channels with channel state information being known at both transmitter and receiver. By spatiotemporal subchannel selection and power control, it aims to minimize the…

Information Theory · Computer Science 2014-03-27 Dian-Wu Yue , Yichuang Sun

In practical mobile communication engineering applications, surfaces of antenna array deployment regions are usually uneven. Therefore, massive multi-input-multi-output (MIMO) communication systems usually transmit wireless signals by…

Information Theory · Computer Science 2016-04-19 Xiaohu Ge , Ran Zi , Haichao Wang , Jing Zhang , Minho Jo

In this paper, we discuss a non-orthogonal multiple access (NOMA) scheme to exploit a high diversity gain using repetition, namely repetition-based NOMA. Unlike conventional power-domain NOMA, all the users can have the same transmit power,…

Information Theory · Computer Science 2020-04-03 Jinho Choi

A multi-input multi-output (MIMO) Gaussian channel with two transmit antennas and two receive antennas is studied that is subject to an input peak-power constraint. The capacity and the capacity-achieving input distribution are unknown in…

Information Theory · Computer Science 2024-01-31 Alex Dytso , Luca Barletta , Gerhard Kramer

In this paper, the outage performance of a two-tier heterogeneous mmWave cellular networks employing joint spatial division and multiplexing (JSDM) is investigated. It is assumed that macro base stations (BSs) equipped with a large number…

Signal Processing · Electrical Eng. & Systems 2019-01-24 Jun Chen , Deli Qiao

In this paper we consider a time-division duplex cell-free massive multiple-input multiple-output (MIMO) system where many distributed access points (APs) simultaneously serve many users. A normalized conjugate beamforming scheme, which…

Information Theory · Computer Science 2019-09-10 Giovanni Interdonato , Hien Quoc Ngo , Erik G. Larsson , Pål Frenger

The problem of sending a secret message over the Gaussian multiple-input multiple-output (MIMO) wiretap channel is studied. While the capacity of this channel is known, it is not clear how to construct optimal coding schemes that achieve…

Information Theory · Computer Science 2016-10-31 Anatoly Khina , Yuval Kochman , Ashish Khisti

The characteristics of a space-to-space multiple-input, multiple-output (MIMO) communication channel that distinguish it from terrestrial MIMO communication channels are summarized and discussed primarily from an information-theoretic…

Information Theory · Computer Science 2016-01-21 Richard J. Barton

Massive multiple-input multiple-output (MIMO) is expected to be a vital component in future 5G systems. As such, there is a need for new modeling in order to investigate the performance of massive MIMO not only at the physical layer, but…

Signal Processing · Electrical Eng. & Systems 2019-05-13 Emma Fitzgerald , Michał Pióro , Fredrik Tufvesson

We consider the problem of finding secrecy rate of a multiple-input multiple-output (MIMO) wire-tap channel. A transmitter, a legitimate receiver, and an eavesdropper are all equipped with multiple antennas. The channel states from the…

Information Theory · Computer Science 2014-11-04 Arash Khabbazibasmenj , Maksym A. Girnyk , Sergiy A. Vorobyov , Mikko Vehkaperä , Lars K. Rasmussen

The performance of integer-forcing equalization for communication over the compound multiple-input multipleoutput channel is investigated. An upper bound on the resulting outage probability as a function of the gap to capacity has been…

Information Theory · Computer Science 2017-12-05 Elad Domanovitz , Uri Erez

To support the high data rates for latency-critical applications, future wireless systems will employ fully digital beamforming multiple-input multiple-output (MIMO) architectures at millimeter wave (mmWave) frequencies. Moreover, mmWave…

Signal Processing · Electrical Eng. & Systems 2026-04-06 Faruk Pasic , Mariam Mussbah , Stefan Schwarz , Markus Rupp , Christoph F. Mecklenbräuker

In the two-user Gaussian interference channel with Gaussian inputs and treating interference as noise (TIN), improper complex signals can be beneficial if time-sharing is not allowed or if only the data rates are averaged over several…

Information Theory · Computer Science 2020-12-30 Christoph Hellings , Ferhad Askerbeyli , Wolfgang Utschick

We study analogue source transmission over MIMO block-fading channels with receiver-only channel state information. Unlike previous work which considers the end-to-end expected distortion as a figure of merit, we study the distortion outage…

Information Theory · Computer Science 2016-11-15 Li Peng , Albert Guillen i Fabregas

Using a large deviations approach we calculate the probability distribution of the mutual information of MIMO channels in the limit of large antenna numbers. In contrast to previous methods that only focused at the distribution close to its…

Information Theory · Computer Science 2016-11-18 P. Kazakopoulos , P. Mertikopoulos , A. L. Moustakas , G. Caire

An information-theoretic analysis of a multi-keyhole channel, which includes a number of statistically independent keyholes with possibly different correlation matrices, is given. When the number of keyholes or/and the number of Tx/Rx…

Information Theory · Computer Science 2016-11-18 George Levin , Sergey Loyka

In this paper, the performance of an underlay multiple-input multiple-output (MIMO) cognitive radio system is analytically studied. In particular, the secondary transmitter operates in a spatial multiplexing transmission mode, while a…

Information Theory · Computer Science 2017-12-05 Nikolaos I. Miridakis , Minghua Xia , Theodoros A. Tsiftsis

This paper considers a massive MIMO system under the double scattering channels. We derive a closed-form expression of the uplink ergodic spectral efficiency (SE) by exploiting the maximum-ratio combining technique with imperfect channel…

Information Theory · Computer Science 2021-02-12 Trinh Van Chien , Hien Quoc Ngo , Symeon Chatzinotas , Björn Ottersten , Merouane Debbah

We consider a multi-cell MIMO downlink (network MIMO) where $B$ base-stations (BS) with $M$ antennas connected to a central station (CS) serve $K$ single-antenna user terminals (UT). Although many works have shown the potential benefits of…

Information Theory · Computer Science 2016-11-17 Mari Kobayashi , Sheng Yang , Merouane Debbah , Jean-Claude Belfiore

Multiple cluster scattering MIMO channel is a useful model for pico-cellular MIMO networks. In this paper, orthogonal space-time block coded transmission over such a channel is considered, where the effective channel equals the product of n…

Information Theory · Computer Science 2014-04-07 Lu Wei , Zhong Zheng , Jukka Corander , Giorgio Taricco