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Cell-free (CF) massive multiple-input-multiple-output (mMIMO) deployments are usually investigated with half-duplex nodes and high-capacity fronthaul links. To leverage the possible gains in throughput and energy efficiency (EE) of…

Signal Processing · Electrical Eng. & Systems 2021-08-11 Soumyadeep Datta , Ekant Sharma , Dheeraj Naidu Amudala , Rohit Budhiraja , Shivendra S. Panwar

We investigate joint localization and synchronization in the downlink of a distributed multiple-input-multiple-output (D-MIMO) system, aiming to estimate the position and phase offset of a single-antenna user equipment (UE) using downlink…

Signal Processing · Electrical Eng. & Systems 2025-04-15 Sauradeep Dey , Musa Furkan Keskin , Dario Tagliaferri , Gonzalo Seco-Granados , Henk Wymeersch

Distributed massive multiple-input multiple-output (MIMO) combines the array gain of coherent MIMO processing with the proximity gains of distributed antenna setups. In this paper, we analyze how transceiver hardware impairments affect the…

Information Theory · Computer Science 2015-06-04 Emil Björnson , Michail Matthaiou , Antonios Pitarokoilis , Erik G. Larsson

Spectrum congestion and competition over frequency bandwidth could be alleviated by deploying dual-function radar-communications systems, where the radar platform presents itself as a system of opportunity to secondary communication…

Signal Processing · Electrical Eng. & Systems 2018-08-16 Xiangrong Wang , Aboulnasr Hassanien , Moeness Amin

Massive multiple-inputmultiple-output (MIMO) systems, dense small-cells (SCs), and full duplex are three candidate techniques for next-generation communication systems. The cooperation of next-generation techniques could offer more…

Information Theory · Computer Science 2015-12-10 Boyu Li , Dengkui Zhu , Ping Liang

In this paper, we study the design of secure communication for time division duplexing multi-cell multi-user massive multiple-input multiple-output (MIMO) systems with active eavesdropping. We assume that the eavesdropper actively attacks…

Information Theory · Computer Science 2018-01-23 Yongpeng Wu , Chao-Kai Wen , Wen Chen , Shi Jin , Robert Schober , Giuseppe Caire

Multiple-input multiple-output (MIMO) systems with a large number of basestation antennas, often called massive MIMO, have received much attention in academia and industry as a means to improve the spectral efficiency, energy efficiency,…

Information Theory · Computer Science 2017-04-20 Hyoungju Ji , Younsun Kim , Juho Lee , Eko Onggosanusi , Younghan Nam , Jianzhong Zhang , Byungju Lee , Byonghyo Shim

We aim to secure a large-scale device-to-device (D2D) network against adversaries. The D2D network underlays a downlink cellular network to reuse the cellular spectrum and is enabled for simultaneous wireless information and power transfer…

Information Theory · Computer Science 2023-02-17 Shaohan Feng , Xiao Lu , Dusit Niyato , Ekram Hossain , Sumei Sun

Cell-free (CF) architecture and full-duplex (FD) communication are leading candidates for next-generation wireless networks. The CF framework removes cell boundaries in traditional cell-based systems, thereby mitigating inter-cell…

Signal Processing · Electrical Eng. & Systems 2024-12-09 Diluka Galappaththige , Mohammadali Mohammadi , Hien Quoc Ngo , Michail Matthaiou , Chintha Tellambura

Cell-Free Massive Multiple-input Multiple-output (mMIMO) consists of many access points (APs) in a coverage area that jointly serve the users. These systems can significantly reduce the interference among the users compared to conventional…

Information Theory · Computer Science 2021-11-16 Abbas Khalili , Alexei Ashikhmin , Hong Yang

In this paper, we consider massive multiple-input multiple-output (MIMO) systems for both downlink and uplink scenarios, where three radio units (RUs) connected via one digital unit (DU) support multiple user equipments (UEs) at the…

Information Theory · Computer Science 2016-11-17 Yeon-Geun Lim , Chan-Byoung Chae , Giuseppe Caire

In this paper, a Full Duplex (FD) eXtremely Large (XL) Multiple-Input Multiple-Output (MIMO) node equipped with reconfigurable metasurface antennas at its transmission and reception sides is considered, which is optimized for simultaneous…

Signal Processing · Electrical Eng. & Systems 2024-11-18 Ioannis Gavras , George C. Alexandropoulos

Large antenna arrays will be needed in future millimeter wave (mmWave) cellular networks, enabling a large number of different possible antenna architectures and multiple-input multiple-output (MIMO) techniques. It is still unclear which…

Information Theory · Computer Science 2016-11-15 Mandar N. Kulkarni , Amitava Ghosh , Jeffrey G. Andrews

Millimeter wave (mmWave) massive MIMO can achieve orders of magnitude increase in spectral and energy efficiency, and it usually exploits the hybrid analog and digital precoding to overcome the serious signal attenuation induced by mmWave…

Information Theory · Computer Science 2016-04-01 Linglong Dai , Xinyu Gao , Jinguo Quan , Shuangfeng Han , Chih-Lin I

Analog Multiple-Input Multiple-Output Radio-over-Copper (A-MIMO-RoC) is an effective all-analog FrontHaul (FH) architecture that exploits any pre-existing Local Area Network (LAN) cabling infrastructure of buildings to distribute…

Signal Processing · Electrical Eng. & Systems 2019-10-24 Andrea Matera , Vittorio Rampa , Marcello Donati , Armando Colamonico , Andrea Fabio Cattoni , Umberto Spagnolini

Network-assisted device-to-device communication is a promising technology for improving the performance of proximity-based services. This paper demonstrates how the integration of device-to-device communications and dynamic time-division…

Information Theory · Computer Science 2015-06-02 Demia Della Penda , Liqun Fu , Mikael Johansson

This paper considers a full-duplex (FD) multiuser multiple-input single-output system where a base station simultaneously serves both uplink (UL) and downlink (DL) users on the same time-frequency resource. The crucial barriers in…

Signal Processing · Electrical Eng. & Systems 2019-03-18 Hieu V. Nguyen , Van-Dinh Nguyen , Octavia A. Dobre , Yongpeng Wu , Oh-Soon Shin

Massive multiple-input multiple-output (mMIMO) antenna systems and inter-band carrier aggregation (CA)-enabled multi-band communication are two key technologies to achieve very high data rates in beyond fifth generation (B5G) wireless…

Networking and Internet Architecture · Computer Science 2024-07-31 Nuwan Balasuriya , Amine Mezghani , Ekram Hossain

The visualization of future generation Wireless Communication Network WCN redirects the presumption of onward innovations, the fulfillment of user demands in the form of high data rates, energy efficiency, low latency, and long-range…

Cryptography and Security · Computer Science 2021-04-09 Misbah Shafi , Rakesh Kumar Jha

This paper investigates the throughput for wireless network with full-duplex radios using stochastic geometry. Full-duplex (FD) radios can exchange data simultaneously with each other. On the other hand, the downside of FD transmission is…

Information Theory · Computer Science 2015-02-27 Zhen Tong , Martin Haenggi