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Massive multiple-input multiple-output (MIMO) is expected to play a central role in future wireless systems. The deployment of large antenna arrays at the base station and the mobile users offers multiplexing and beamforming gains that…

Information Theory · Computer Science 2016-11-17 Ahmed Alkhateeb , Young-Han Nam , Jianzhong Zhang , Robert W. Heath

The key obstacle to achieving the full potential of the millimeter wave (mmWave) band has been the poor propagation characteristics of wireless signals in this band. One approach to overcome this issue is to use antennas that can support…

Signal Processing · Electrical Eng. & Systems 2017-10-25 Mojtaba Ahmadi Almasi , Hani Mehrpouyan , Vida Vakilian , Nader Behdad , Hamid Jafarkhani

As connected devices continue to decrease in size, we explore the idea of leveraging everyday surfaces such as tabletops and walls to augment the wireless capabilities of devices. Specifically, we introduce Surface MIMO, a technique that…

Networking and Internet Architecture · Computer Science 2018-09-11 Justin Chan , Anran Wang , Vikram Iyer , Shyamnath Gollakota

Unmanned aerial vehicles (UAVs) can be used as aerial wireless base stations when cellular networks are not operational due to natural disasters. They can also be used to supplement the ground base station in order to provide better…

Information Theory · Computer Science 2018-12-26 Hazim Shakhatreh , Abdallah Khreishah , Issa Khalil

Future wireless networks must provide ever higher data rates. The available bandwidth increases roughly linearly as we increase the carrier frequency, but the range shrinks drastically. This paper explores if we can instead reach massive…

Signal Processing · Electrical Eng. & Systems 2024-12-02 Amna Irshad , Alva Kosasih , Emil Björnson , Luca Sanguinetti

In this paper, we consider the task of introducing a new wireless data link over a given occupied frequency band using a multi-antenna transmitter and receiver. We design formally a dynamic multiple-input multiple-output (MIMO) wireless…

Networking and Internet Architecture · Computer Science 2025-04-10 Hatef Nouri , George Sklivanitis , Dimitris A. Pados , Elizabeth Serena Bentley

Contemporary wireless communication systems rely on Multi-User Multiple-Input Multiple-Output (MU-MIMO) techniques. In such systems, each Access Point (AP) is equipped with multiple antenna elements and serves multiple devices…

Information Theory · Computer Science 2024-12-24 Eduardo Noboro Tominaga , Onel Luis Alcaraz López , Tommy Svensson , Richard Demo Souza , Hirley Alves

A contemporary perspective on the tradeoff between transmit antenna diversity and spatial multiplexing is provided. It is argued that, in the context of most modern wireless systems and for the operating points of interest, transmission…

Information Theory · Computer Science 2009-03-05 Angel Lozano , Nihar Jindal

The recently commercialized fifth-generation (5G) wireless communication networks achieved many improvements, including air interface enhancement, spectrum expansion, and network intensification by several key technologies, such as massive…

Information Theory · Computer Science 2021-12-01 Hengtao He , Xianghao Yu , Jun Zhang , S. H. Song , Khaled B. Letaief

Newer cellular communication generations are planned to allow asynchronous transmission of multiple numerologies (waveforms with different parameters) in adjacent bands, creating unavoidable adjacent channel interference. Most prior work on…

Signal Processing · Electrical Eng. & Systems 2020-03-03 Berker Peköz , Selçuk Köse , Hüseyin Arslan

There have been active research activities worldwide in developing the next-generation 5G wireless network. The 5G network is expected to support significantly large amount of mobile data traffic and huge number of wireless connections,…

Information Theory · Computer Science 2015-10-22 Tadilo Endeshaw Bogale , Long Bao Le

Extended Reality (XR) enables a plethora of novel interactive shared experiences. Ideally, users are allowed to roam around freely, while audiovisual content is delivered wirelessly to their Head-Mounted Displays (HMDs). Therefore, truly…

Networking and Internet Architecture · Computer Science 2025-01-15 Jakob Struye , Sam Van Damme , Nabeel Nisar Bhat , Arno Troch , Barend Van Liempd , Hany Assasa , Filip Lemic , Jeroen Famaey , Maria Torres Vega

To support faster and more efficient networks, mobile operators and service providers are bringing 5G millimeter wave (mmWave) networks indoors. However, due to their high directionality, mmWave links are extremely vulnerable to blockage by…

Signal Processing · Electrical Eng. & Systems 2021-02-03 Kun Woo Cho , Mohammad Hossein Mazaheri , Jeremy Gummeson , Omid Abari , Kyle Jamieson

Consumer electronic (CE) devices increasingly rely on wireless local area networks (WLANs). Next generation WLANs will continue to exploit multiple antenna systems to satisfy the growing need for WLAN system capacity. Multiple-input…

Signal Processing · Electrical Eng. & Systems 2018-12-05 Xiaofu Ma , Qinghai Gao , Ji Wang , Vuk Marojevic , Jeffrey H. Reed

In this work we investigate the reassignment of User Equipments (UEs) between adjacent small cells to concurrently enable spatial multiplexing gains through Multi-User MIMO (MU-MIMO) and reductions in energy consumption though switching…

Networking and Internet Architecture · Computer Science 2016-02-09 Danny Finn , Hamed Ahmadi , Rouzbeh Razavi , Holger Claussen , Luiz DaSilva

Multimedia streaming applications with stringent QoS requirements in 60GHz mmWave wireless personal area networks (WPANs) demand high rate and low latency data transfer as well as low service disruption. In this paper, we consider the…

Networking and Internet Architecture · Computer Science 2015-03-20 Guanbo Zheng , Cunqing Hua , Rong Zheng , Qixin Wang

3-dimensional Multiple-Input Multiple-Output (3D MIMO) systems have received great interest recently because of the spatial diversity advantage and capability for full-dimensional beamforming, making them promising candidates for practical…

Movable antenna (MA) has demonstrated great potential in enhancing wireless communication performance. In this paper, we investigate an MA-enabled multiple-input multiple-output (MIMO) communication system with spatial modulation (SM),…

Signal Processing · Electrical Eng. & Systems 2026-01-21 Kaihe Wang , Ran Yang , Lipeng Zhu , Rongyan Xi , Yue Xiu , Zhongpei Zhang

Reconfigurable intelligent surface (RIS)-assisted communication appears as one of the potential enablers for sixth generation (6G) wireless networks by providing a new degree of freedom in the system design to telecom operators.…

Signal Processing · Electrical Eng. & Systems 2021-09-21 E. Basar , I. Yildirim , F. Kilinc

This paper considers the following question for viable wide-area millimeter wave cellular networks. What is the maximum extended coverage area of a single fiber site using multi-hop relaying, while achieving a minimum target per user data…

Information Theory · Computer Science 2018-11-21 Mandar N. Kulkarni , Amitava Ghosh , Jeffrey G. Andrews