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This letter proposes an energy efficient distributed worst case robust power allocation in massive multiple input multiple output (MIMO) system. We assume a bounded channel state information (CSI) error and all channels lie in some bounded…

Signal Processing · Electrical Eng. & Systems 2019-01-04 Saeed Sadeghi Vilni

Recently, the remarkable potential of a multiple-input multiple-output (MIMO) wireless communication system was unveiled for its ability to provide spatial diversity or multiplexing gains. For MIMO diversity schemes, it is already known…

Information Theory · Computer Science 2007-07-13 Hongyuan Zhang , Huaiyu Dai , Quan Zhou , Brian L. Hughes

The aim of this paper is to analyze the array synthesis for 5 G massive MIMO systems in the line-of-sight working condition. The main result of the numerical investigation performed is that non-uniform arrays are the natural choice in this…

Information Theory · Computer Science 2017-09-04 Daniele Pinchera , Marco Donald Migliore , Fulvio Schettino , Gaetano Panariello

In this paper, the filter-and-forward (FF) relay design for multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems is considered. Due to the considered MIMO structure, the problem of joint design of…

Information Theory · Computer Science 2013-10-14 Donggun Kim , Youngchul Sung , Jihoon Chung

Multiple-input, multiple-output (MIMO) technology provides high data rate and enhanced QoS for wireless com- munications. Since the benefits from MIMO result in a heavy computational load in detectors, the design of low-complexity…

Hardware Architecture · Computer Science 2015-03-17 Ni-Chun Wang , Ezio Biglieri , Kung Yao

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

Hybrid transceiver can strike a balance between complexity and performance of multiple-input multiple-output (MIMO) systems. In this paper, we develop a unified framework on hybrid MIMO transceiver design using matrix-monotonic…

Information Theory · Computer Science 2019-06-26 Chengwen Xing , Xin Zhao , Wei Xu , Xiaodai Dong , Geoffrey Ye Li

This paper studies the problem of robust downlink beamforming design in a multiuser Multi-Input Single-Output (MISO) Cognitive Radio Network (CR-Net) in which multiple Primary Users (PUs) coexist with multiple Secondary Users (SUs). Unlike…

Optimization and Control · Mathematics 2016-11-17 Ebrahim A. Gharavol , Ying-Chang Liang , Koenraad Mouthaan

This paper studies the coordinated beamforming design problem for the multiple-input single-output (MISO) interference channel, assuming only channel distribution information (CDI) at the transmitters. Under a given requirement on the rate…

Information Theory · Computer Science 2016-11-18 Wei-Chiang Li , Tsung-Hui Chang , Che Lin , Chong-Yung Chi

XL-MIMO emerges as a promising technology to achieve unprecedented enhancements in spectral efficiency and spatial resolution, via orders-of-magnitude increase in the antenna array size. However, the practical issues of high hardware cost…

Information Theory · Computer Science 2025-08-29 Haiquan Lu , Hongqi Min , Yong Zeng , Shaodan Ma

This paper studies robust resource allocation algorithm design for a multiuser multiple-input single-output (MISO) cognitive radio (CR) downlink communication network. We focus on a secondary system which provides unicast secure wireless…

Information Theory · Computer Science 2016-11-15 Derrick Wing Kwan Ng , Mohammad Shaqfeh , Robert Schober , Hussein Alnuweiri

This study focuses on the optimization of a single-cell multi-user multiple-input multiple-output (MIMO) system with multiple large-size reconfigurable intelligent surfaces (RISs). The overall transmit power is minimized by optimizing the…

Information Theory · Computer Science 2024-10-08 Silvia Palmucci , Giulio Bartoli , Andrea Abrardo , Marco Moretti , Marco Di Renzo

In this paper, we consider the design of a multiple-input multiple-output (MIMO) transmitter which simultaneously functions as a MIMO radar and a base station for downlink multiuser communications. In addition to a power constraint, we…

Signal Processing · Electrical Eng. & Systems 2021-09-07 Xiang Liu , Tianyao Huang , Yimin Liu

Due to the continuous advancements of orthogonal frequency division multiplexing (OFDM) and multiple antenna techniques, multiuser multiple input multiple output (MU-MIMO) OFDM is a key enabler of both fourth and fifth generation networks.…

Signal Processing · Electrical Eng. & Systems 2021-03-31 Iran M. Braga , Roberto P. Antonioli , Gabor Fodor , Yuri C. B. Silva , Carlos F. M. e Silva , Walter C. Freitas

This paper considers an antenna structure where a (non-large) array of radiating elements is placed at short distance in front of a reconfigurable intelligent surface (RIS). We propose a channel estimation procedure using different…

Information Theory · Computer Science 2021-10-26 Stefano Buzzi , Carmen D'Andrea , Giovanni Interdonato

The performance of irregular phased array architectures is assessed in the context of multi-user multiple-input multiple-output (MU-MIMO) communications operating beyond 100 GHz. Realizing half-wavelength spaced planar phased arrays is…

Signal Processing · Electrical Eng. & Systems 2025-09-30 Yigit Ertugrul , Kamil Yavuz Kapusuz , Claude Desset , Sofie Pollin

In this paper, we investigate the problem of jointly optimizing the waveform covariance matrix and the antenna position vector for multiple-input-multiple-output (MIMO) radar systems to approximate a desired transmit beampattern as well as…

Signal Processing · Electrical Eng. & Systems 2019-12-03 Arindam Bose , Shahin Khobahi , Mojtaba Soltanalian

Recently proposed multiple input multiple output radars based on matrix completion (MIMO-MC) employ sparse sampling to reduce the amount of data that need to be forwarded to the radar fusion center, and as such enable savings in…

Information Theory · Computer Science 2016-08-24 Bo Li , Athina P. Petropulu , Wade Trappe

The long-term average performance of the MISO downlink channel, with a large number of users compared to transmit antennas of the BS, depends on the interference management which necessitates the joint design problem of scheduling and…

Signal Processing · Electrical Eng. & Systems 2019-02-14 Ashok Bandi , Bhavani Shankar Mysore R , Symeon Chatzinotas , Björn Ottersten

Future wireless communication systems are expected to explore spectral bands typically used by radar systems, in order to overcome spectrum congestion of traditional communication bands. Since in many applications radar and communication…

Signal Processing · Electrical Eng. & Systems 2020-08-26 Xiang Liu , Tianyao Huang , Nir Shlezinger , Yimin Liu , Jie Zhou , Yonina C. Eldar