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Immersive video, such as virtual reality (VR) and multi-view videos, is growing in popularity. Its wireless streaming is an instance of general multicast, extending conventional unicast and multicast, whose effective design is still open.…

Information Theory · Computer Science 2022-06-17 Lingzhi Zhao , Ying Cui , Sheng Yang , Shlomo Shamai

We consider the interference management problem in a multicell MIMO heterogenous network. Within each cell there are a large number of distributed micro/pico base stations (BSs) that can be potentially coordinated for joint transmission. To…

Information Theory · Computer Science 2015-03-20 Mingyi Hong , Ruo-Yu Sun , Hadi Baligh , Zhi-Quan Luo

This article studies a novel distributed precoding design, coined team minimum mean-square error (TMMSE) precoding, which rigorously generalizes classical centralized MMSE precoding to distributed operations based on transmitter-specific…

Information Theory · Computer Science 2021-11-04 Lorenzo Miretti , Emil Björnson , David Gesbert

Movable antenna (MA) is an emerging technology that utilizes localized antenna movement to achieve better channel conditions for enhancing communication performance. In this paper, we study the MA-enhanced multicast transmission from a base…

Information Theory · Computer Science 2024-09-27 Ying Gao , Qingqing Wu , Wen Chen

This paper investigates the hybrid precoding design for millimeter wave (mmWave) multiple-input multiple-output (MIMO) systems with finite-alphabet inputs. The mmWave MIMO system employs partially-connected hybrid precoding architecture…

Information Theory · Computer Science 2019-02-14 Juening Jin , Chengshan Xiao , Wen Chen , Yongpeng Wu

The capacity of caching networks has received considerable attention in the past few years. A particularly studied setting is the case of a single server (e.g., a base station) and multiple users, each of which caches segments of files in a…

Information Theory · Computer Science 2014-10-30 Mingyue Ji , Antonia M. Tulino , Jaime Llorca , Giuseppe Caire

This work studies the joint design of precoding and backhaul compression strategies for the downlink of cloud radio access networks. In these systems, a central encoder is connected to multiple multi-antenna base stations (BSs) via…

Information Theory · Computer Science 2015-06-15 Seok-Hwan Park , Osvaldo Simeone , Onur Sahin , Shlomo Shamai

This paper considers an artificial noise (AN)-aided transmit design for multi-user MIMO systems with integrated services. Specifically, two sorts of service messages are combined and served simultaneously: one multicast message intended for…

Information Theory · Computer Science 2018-02-13 Weidong Mei , Zhi Chen , Jun Fang , Shaoqian Li

Next generation of wireless networks will likely rely on large-scale antenna systems, either in the form of massive multi-input-multi-output (MIMO) or millimeter wave (mmWave) systems. Therefore, the conventional fully-digital precoders are…

Information Theory · Computer Science 2017-03-31 Meysam Sadeghi , Luca Sanguinetti , Chau Yuen

Configuring the hybrid precoders and combiners in a millimeter wave (mmWave) multiuser (MU) multiple-input multiple-output (MIMO) system is challenging in frequency selective channels. In this paper, we develop a system that uses…

Information Theory · Computer Science 2024-01-30 J. P. González-Coma , J. Rodríguez-Fernández , N. González-Prelcic , L. Castedo , R. W. Heath

This paper addresses precoder design for secure multiple-input multiple-output (MIMO) integrated sensing and communications (ISAC) systems. We introduce a MIMO channel with a multiple-antenna eavesdropper and a multiple-antenna sensing…

Signal Processing · Electrical Eng. & Systems 2026-03-09 Seongkyu Jung , Namyoon Lee , Jeonghun Park

The throughput of users with poor channel conditions, such as those at a cell edge, is a bottleneck in wireless systems. A major part of the power budget must be allocated to serve these users in guaranteeing their quality-of-service (QoS)…

Information Theory · Computer Science 2017-06-07 Van-Dinh Nguyen , Hoang Duong Tuan , Trung Q. Duong , H. Vincent Poor , and Oh-Soon Shin

This paper develops a multi-user downlink communication framework for distributed low Earth orbit satellite networks serving ground users equipped with multiple antennas. Building upon the concept of cell-free multiple-input multiple-output…

Signal Processing · Electrical Eng. & Systems 2026-01-28 Parisa Ramezani , Emil Björnson

This paper studies the joint multicast beamforming and user scheduling problem, with the objective of minimizing total transmitting power across multiple channels by jointly assigning each user to appropriate channel and designing multicast…

Information Theory · Computer Science 2018-09-05 L. Zhou , Z. Xu , W. Jiang , W. Luo

Massive multiple-input multiple-output (mMIMO) technology has transformed wireless communication by enhancing spectral efficiency and network capacity. This paper proposes a novel deep learning-based mMIMO precoder to tackle the complexity…

Signal Processing · Electrical Eng. & Systems 2025-02-14 Ali Hasanzadeh Karkan , Ahmed Ibrahim , Jean-François Frigon , François Leduc-Primeau

In this paper, we consider the precoder design for an under-loaded or critically loaded downlink multi-user multiple-input multiple-output (MU-MIMO) communication system. We propose novel precoding and decoding schemes which enhance system…

Information Theory · Computer Science 2022-05-03 Aravindh Krishnamoorthy , Robert Schober

This paper addresses the joint transceiver design for downlink multiuser multiple-input multiple-output (MIMO) systems, with imperfect channel state information (CSI) at the base station (BS) and mobile stations (MSs). By incorporating…

Optimization and Control · Mathematics 2013-11-26 Tadilo Endeshaw Bogale , Batu Krishna Chalise , Luc Vandendorpe

This paper considers the joint transceiver design for downlink multiuser multiple-input single-output (MISO) systems with coordinated base stations (BSs) where imperfect channel state information (CSI) is available at the BSs and mobile…

Optimization and Control · Mathematics 2013-11-26 Tadilo Endeshaw , Luc Vandendorpe , Batu Krishna Chalise

In this paper, we consider the precoder design for an underloaded or critically loaded downlink multi-user multiple-input multiple-output (MIMO) communication system. We propose novel precoding and decoding schemes which enhance system…

Information Theory · Computer Science 2022-05-09 Aravindh Krishnamoorthy , Robert Schober

Aiming at maximizing the energy efficiency (EE) of multicast multibeam satellite communications, we consider the precoding design under the total power and quality of service (QoS) constraints. Since the original EE maximization problem is…

Signal Processing · Electrical Eng. & Systems 2020-02-19 Chenhao Qi , Huajian Chen , Yansha Deng , Nallanathan Arumugam