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In this paper, linear beamforming design for amplify-and-forward relaying cellular networks is considered, in which base station, relay station and mobile terminals are all equipped with multiple antennas. The design is based on minimum…

Information Theory · Computer Science 2011-12-02 Chengwen Xing , Minghua Xia , shaodan Ma , Yik-Chung Wu

This paper considers a deterministic physical model of massive multiple-input multiple-output (MIMO) systems with uniform linear antenna arrays. It is known that the maximum spatial degrees of freedom is achieved by spacing antenna elements…

Information Theory · Computer Science 2016-01-22 Keigo Takeuchi

Full-duplex (FD) systems have the capability to transmit and receive at the same time in the same frequency band. FD systems can reduce congestion and latency and improve coverage and spectral efficiency. As a relay, they can increase range…

Signal Processing · Electrical Eng. & Systems 2021-10-26 Elyes Balti , Brian L. Evans

In this paper, we address the power allocation problem for a decode and forward (DF) relay system, where a massive multiple-input-multiple-output (mMIMO) multi-carrier (MC) base station (BS) node communicates with a MC single antenna node…

Information Theory · Computer Science 2019-08-01 Vimal Radhakrishnan , Omid Taghizadeh , Rudolf Mathar

In this paper the advantages provided by multicell processing of signals transmitted by mobile terminals (MTs) which are received via dedicated relay terminals (RTs) are studied. It is assumed that each RT is capable of full-duplex…

Information Theory · Computer Science 2016-11-17 Oren Somekh , Osvaldo Simeone , H. Vincent Poor , Shlomo Shamai

In this paper, the zero-forcing (ZF) precoder with max-min power allocation is proposed for cell-free millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) systems using low-resolution digital-to-analog converters (DACs)…

Signal Processing · Electrical Eng. & Systems 2022-07-14 In-soo Kim , Junil Choi

Previous work on relay networks has concentrated primarily on the diversity benefits of such techniques. This paper explores the possibility of also obtaining multiplexing gain in a relay network, while retaining diversity gain.…

Information Theory · Computer Science 2007-09-29 Yijia , Fan , H. Vincent Poor , John S. Thompson

This paper considers the implementation and application possibilities of a compact full duplex multiple-input multiple-output (MIMO) architecture where direct communication exists between users, e.g., device-to-device (D2D) and cellular…

Information Theory · Computer Science 2017-03-27 MinKeun Chung , Min Soo Sim , Dong Ku Kim , Chan-Byoung Chae

Massive multi-user multiple-input multiple-output (MU-MIMO) systems enable high spatial resolution, high spectral efficiency, and improved link reliability compared to traditional MIMO systems due to the large number of antenna elements…

Signal Processing · Electrical Eng. & Systems 2024-07-19 Brikena Kaziu , Nikita Shanin , Danilo Spano , Li Wang , Wolfgang Gerstacker , Robert Schober

In this paper, a multiple-relay network in considered, in which $K$ single-antenna relays assist a single-antenna transmitter to communicate with a single-antenna receiver in a half-duplex mode. A new Amplify and Forward (AF) scheme is…

Information Theory · Computer Science 2007-10-01 Shahab Oveis Gharan , Alireza Bayesteh , Amir K. khandani

The fundamental diversity-multiplexing tradeoff of the three-node, multi-input, multi-output (MIMO), quasi-static, Rayleigh faded, half-duplex relay channel is characterized for an arbitrary number of antennas at each node and in which…

Information Theory · Computer Science 2011-07-01 Sanjay Karmakar , Mahesh K. Varanasi

We analyze a multi-level MIMO relaying system where a multiple-antenna transmitter sends data to a multipleantenna receiver through several relay levels, also equipped with multiple antennas. Assuming correlated fading in each hop, each…

Information Theory · Computer Science 2016-11-17 Nadia Fawaz , Keyvan Zarifi , Merouane Debbah , David Gesbert

Various sectors are likely to carry a set of emerging applications while targeting a reliable communication with low latency transmission. To address this issue, upon a spectrally-efficient transmission, this paper investigates the…

Signal Processing · Electrical Eng. & Systems 2018-04-11 Fatima Ezzahra Airod , Houda Chafnaji , Ahmed Tamtaoui

Wireless communication systems can be enhanced at the link level, in medium access, and at the network level when transceivers are equipped with full-duplex capability: the transformative ability to simultaneously transmit and receive over…

Signal Processing · Electrical Eng. & Systems 2022-10-18 Ian P. Roberts , Himal A. Suraweera

By processing in the frequency domain (FD), massive MIMO systems can approach the theoretical per-user capacity using a single carrier modulation (SCM) waveform with a cyclic prefix. Minimum mean squared error (MMSE) detection and zero…

Signal Processing · Electrical Eng. & Systems 2021-03-16 Brent A. Kenney , Arslan J. Majid , Hussein Moradi , Behrouz Farhang-Boroujeny

In this paper, we consider the multi-user detection problem in a multiple-input multiple-output (MIMO) system, where the number of receive antennas at the base station (BS) grows infinitely large. We propose a new performance metric, called…

Signal Processing · Electrical Eng. & Systems 2021-07-22 Ruichen Jiang , Ya-Feng Liu

We consider the downlink of a multi-cell system with multi-antenna base stations and single-antenna user terminals, arbitrary base station cooperation clusters, distance-dependent propagation pathloss, and general "fairness" requirements.…

Information Theory · Computer Science 2016-11-18 Hoon Huh , Antonia M. Tulino , Giuseppe Caire

Multiple-input multiple-output has been a key technology for wireless systems for decades. For typical MIMO communication systems, antenna array elements are usually separated by half of the carrier wavelength, thus termed as conventional…

Signal Processing · Electrical Eng. & Systems 2024-08-06 Huizhi Wang , Chao Feng , Yong Zeng , Shi Jin , Chau Yuen , Bruno Clerckx , Rui Zhang

In this paper, we consider a dual-hop Multiple Input Multiple Output (MIMO) wireless multi-relay network, in which a source-destination pair both equipped with multiple antennas communicates through multiple half-duplex amplify-and-forward…

Signal Processing · Electrical Eng. & Systems 2020-03-20 Zijian Wang , Wen Chen

\underline{S}imultaneous \underline{t}ransmitting \underline{a}nd \underline{r}eflecting \underline{s}urface (STARS)-assisted systems have emerged to fill this gap by providing $ 360^{\circ}$ wireless coverage. In parallel, full-duplex (FD)…

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