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Massive multiple-input multiple-output (MIMO) has been a critical enabling technology in 5th generation (5G) wireless networks. With the advent of 6G, a natural evolution is to employ even more antennas, potentially an order of magnitude…

Signal Processing · Electrical Eng. & Systems 2024-08-13 Wentao Yu , Yifan Ma , Hengtao He , Shenghui Song , Jun Zhang , Khaled B. Letaief

Wireless communication is the fastest growing area of the communication industry. To keep swiftness with the indefinite increase in customers' demands and expectations, and the market competition among companies for the services…

Networking and Internet Architecture · Computer Science 2012-04-27 Shrikrishan Yadav , Shuchi Jani , B. L. Pal

This paper describes wideband (1 GHz) base station diversity and coordinated multipoint (CoMP)-style large-scale measurements at 73 GHz in an urban microcell open square scenario in downtown Brooklyn, New York on the NYU campus. The…

Information Theory · Computer Science 2018-05-10 George R. MacCartney , Theodore S. Rappaport , Amitava Ghosh

This paper surveys recent advances in the area of very large MIMO systems. With very large MIMO, we think of systems that use antenna arrays with an order of magnitude more elements than in systems being built today, say a hundred antennas…

Information Theory · Computer Science 2015-06-03 Fredrik Rusek , Daniel Persson , Buon Kiong Lau , Erik G. Larsson , Thomas L. Marzetta , Ove Edfors , Fredrik Tufvesson

Massive multiple-input multiple-output (MIMO) systems hold the potential to be an enabling technology for 5G cellular. Uniform planar array (UPA) antenna structures are a focus of much commercial discussion because of their ability to…

Information Theory · Computer Science 2015-02-04 Junil Choi , Taeyoung Kim , David J. Love , Ji-yun Seol

Millimeter wave (mmWave) communications have a broad spectrum and can support data rates in the order of gigabits per second, as envisioned in 5G systems. However, they cannot be used for long distances due to their sensitivity to…

Signal Processing · Electrical Eng. & Systems 2023-01-10 Debamita Ghosh , Haseen Rahman , Manjesh K. Hanawal , Nikola Zlatanov

We propose a hybrid architecture that integrates RF (i.e., sub-6 GHz) and millimeter wave (mmWave) technologies for 5G cellular systems. In particular, communications in the mmWave band faces significant challenges due to variable channels,…

Information Theory · Computer Science 2017-06-12 Morteza Hashemi , C. Emre Koksal , Ness B. Shroff

Massive multiuser (MU) multiple-input multiple-output (MIMO) will be a core technology in fifth-generation (5G) wireless systems as it offers significant improvements in spectral efficiency compared to existing multi-antenna technologies.…

Information Theory · Computer Science 2017-11-09 Oscar Castañeda , Sven Jacobsson , Giuseppe Durisi , Mikael Coldrey , Tom Goldstein , Christoph Studer

Massive MIMO systems can greatly increase spectral and energy efficiency over traditional MIMO systems by exploiting large antenna arrays. However, increasing the number of antennas at the base station (BS) makes the uplink non-coherent…

Information Theory · Computer Science 2015-07-19 Haider Ali Jasim Alshamary , Md Fahim Anjum , Tareq Al-Naffouri , Alam Zaib , Weiyu Xu

Ultra-reliable low latency communications (uRLLC) is adopted in the fifth generation (5G) mobile networks to better support mission-critical applications that demand high level of reliability and low latency. With the aid of…

Information Theory · Computer Science 2023-07-20 Xiaohu You , Bin Sheng , Yongming Huang , Wei Xu , Chuan Zhang , Dongming Wang , Pengcheng Zhu , Chen Ji

We present a unified model for connected antenna arrays with a large number of tightly integrated (i.e., coupled) antennas in a compact space within the context of massive multiple-input multiple-output (MIMO) communication. We refer to…

Information Theory · Computer Science 2023-05-09 Mohamed Akrout , Volodymyr Shyianov , Faouzi Bellili , Amine Mezghani , Robert W. Heath

Research and development on the next generation wireless systems, namely 5G, has experienced explosive growth in recent years. In the physical layer (PHY), the massive multiple-input-multiple-output (MIMO) technique and the use of high GHz…

Information Theory · Computer Science 2017-07-20 Yiming Huo , Xiaodai Dong , Wei Xu

The second generation (2G) cellular networks are the current workhorse for machine-to-machine (M2M) communications. Diversity in 2G devices can be present both in form of multiple receive branches and blind repetitions. In presence of…

Information Theory · Computer Science 2015-11-25 Sha Hu , Harald Kroll , Qiuting Huang , Fredrik Rusek

We present a flexible ultra-thin conformal patch antenna array operating in the Industrial, Scientific, and Medical (ISM) band (2.4-2.4835 GHz) for wireless sensor nodes. The antenna was designed on a flexible polyimide film (Kapton HN)…

Applied Physics · Physics 2017-05-25 M. Zadeh , A. C. Manzoni

Extremely large-scale multiple-input-multiple-output (XL-MIMO), which offers vast spatial degrees of freedom, has emerged as a potentially pivotal enabling technology for the sixth generation (6G) of wireless mobile networks. With its…

Information Theory · Computer Science 2024-01-04 Zhe Wang , Jiayi Zhang , Hongyang Du , Dusit Niyato , Shuguang Cui , Bo Ai , Mérouane Debbah , Khaled B. Letaief , H. Vincent Poor

Mobile autonomous systems, robots, and cyber-physical systems rely on accurate positioning information. To conduct distance-measurement, two devices exchange signals and, knowing these signals propagate at the speed of light, the time of…

Cryptography and Security · Computer Science 2019-11-26 Mridula Singh , Patrick Leu , AbdelRahman Abdou , Srdjan Capkun

Massive multiple-input multiple-out (MIMO) technology is vital in millimeter-wave (mmWave) bands to obtain large array gains. However, there are practical challenges, such as high hardware cost and power consumption in such systems. A…

Signal Processing · Electrical Eng. & Systems 2020-12-04 MinKeun Chung , Liang Liu , Andreas Johansson , Martin Nilsson , Olof Zander , Zhinong Ying , Fredrik Tufvesson , Ove Edfors

In recent years and with introduction of 5G cellular network and communication, researchers have shown great interest in Multiple Input Multiple Output (MIMO) communication, an advanced technology. Many studies have examined the problem of…

Signal Processing · Electrical Eng. & Systems 2023-10-27 Amirsadegh Roshanzamir

Internet of Things is one of the most promising technology of the fifth-generation (5G) mobile broadband systems. Data-driven wireless services of 5G systems require unprecedented capacity and availability. The millimeter-wave based…

Networking and Internet Architecture · Computer Science 2018-08-15 Biswa P. S. Sahoo , Ching-Chun Chou , Chung-Wei Weng , Hung-Yu Wei

This communication proposes a dual-wideband differentially fed dual-polarized magnetoelectric (ME) dipole with second-order bandstop filtering for millimeter-wave (mm-Wave) applications at 24.25-29.5 GHz and 37-43.5 GHz. Without disturbing…

Systems and Control · Electrical Eng. & Systems 2023-12-18 Jiangcheng Chen , Markus Berg , Kimmo Rasilainen , Zeeshan Siddiqui , Marko E. Leinonen , Aarno Pärssinen