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The availability of large bandwidth at millimeter wave (mmWave) frequencies is one of the major factors that rendered very high frequencies a promising candidate enabler for fifth generation (5G) mobile communication networks. To confront…

Information Theory · Computer Science 2016-10-04 George C. Alexandropoulos , Symeon Chouvardas

Millimeter-wave (mmWave) bands will play an important role in 5G wireless systems. The system performance can be assessed by using models from stochastic geometry that cater for the directivity in the desired signal transmissions as well as…

Networking and Internet Architecture · Computer Science 2019-01-25 Mattia Rebato , Jihong Park , Petar Popovski , Elisabeth De Carvalho , Michele Zorzi

Based on the vision on the 6G wireless communication network, i.e., global coverage, all spectrums and all applications, we comprehensively survey 6G related wireless channel measurements, channel characteristics, and channel models for all…

Signal Processing · Electrical Eng. & Systems 2020-07-29 Cheng-Xiang Wang , Jie Huang , Haiming Wang , Xiqi Gao , Xiaohu You , Yang Hao

In this paper, the level of sparsity is examined at 6, 26, and 132 GHz carrier frequencies by conducting channel measurements in an indoor office environment. By using the Gini index (value between 0 and 1) as a metric for characterizing…

Signal Processing · Electrical Eng. & Systems 2023-02-20 Ximan Liu , Jianhua Zhang , Pan Tang , Lei Tian , Harsh Tataria , Shu Sun , Mansoor Shafi

The standardization process of the fifth generation (5G) wireless communications has recently been accelerated and the first commercial 5G services would be provided as early as in 2018. The increasing of enormous smartphones, new complex…

Signal Processing · Electrical Eng. & Systems 2020-03-02 Jie Huang , Cheng-Xiang Wang , Lu Bai , Jian Sun , Yang Yang , Jie Li , Olav Tirkkonen , Ming-Tuo Zhou

We present detailed multipath propagation spatial statistics for next-generation wireless systems operating at lower and upper mid-band frequencies spanning 6--24 GHz. The large-scale spatial characteristics of the wireless channel include…

Signal Processing · Electrical Eng. & Systems 2024-10-10 Dipankar Shakya , Mingjun Ying , Theodore S. Rappaport

Millimeter wave signals with multiple transmit and receive antennas are considered as enabling technology for enhanced mobile broadband services in 5G systems. While this combination is mainly associated with achieving high data rates, it…

Information Theory · Computer Science 2018-08-03 Rico Mendrzik , Henk Wymeersch , Gerhard Bauch

This paper studies the air-to-ground (AG) ultra-wideband (UWB) propagation channel through measurements between 3.1 GHz to 4.8 GHz using unmanned-aerial-vehicles (UAVs). Different line-of-sight (LOS) and obstructed- LOS scenarios and two…

Signal Processing · Electrical Eng. & Systems 2019-06-11 Wahab Ali Gulzar Khawaja , Ozgur Ozdemir , Fatih Erden , Ismail Guvenc , David Matolak

Terahertz (THz) communication is now being considered as one of possible technologies for the sixth generation (6G) wireless communication systems. In this paper, a novel three-dimensional (3D) space-time-frequency non-stationary…

Signal Processing · Electrical Eng. & Systems 2021-08-17 Jun Wang , Cheng-Xiang Wang , Jie Huang , Haiming Wang , Xiqi Gao , Xiaohu You , Yang Hao

Gbps wireless transmission over long distance at high frequency bands has great potential for 5G and beyond, as long as high beamforming gain could be delivered at affordable cost to combat the severe path loss. With limited number of RF…

Information Theory · Computer Science 2019-10-25 Jinfeng Du , Marcin Rybakowski , Kamil Bechta , Reinaldo A. Valenzuela

Millimeter-wave (30-300 GHz) and Terahertz-band communications (0.3-10 THz) are envisioned as key wireless technologies to satisfy the demand for Terabit-per-second (Tbps) links in the 5G and beyond eras. The very large available bandwidth…

Signal Processing · Electrical Eng. & Systems 2019-04-18 Shuai Nie , Josep M. Jornet , Ian F. Akyildiz

Orbital angular momentum (OAM) in electromagnetic (EM) waves can significantly enhance spectrum efficiency in wireless communications without requiring additional power, time, or frequency resources. Different OAM modes in EM waves create…

Signal Processing · Electrical Eng. & Systems 2024-09-09 Runyu Lyu , Wenchi Cheng , Muyao Wang , Fan Qin , Tony Q. S. Quek

A novel mm-wave microstrip-fed patch antenna with broad bandwidth and wide angular coverage suitable for integration in planar arrays is designed, analyzed and verified by measurements. The antenna provides a bandwidth of 13.1% between 34.1…

Signal Processing · Electrical Eng. & Systems 2022-06-27 Jonas Kornprobst , Kun Wang , Gerhard Hamberger , Thomas F. Eibert

This paper presents large-scale path loss models based on extensive ultra-wideband millimeter-wave propagation measurements performed at 28 GHz and 73 GHz in three typical indoor office layouts -- namely: corridor, open-plan, and…

Information Theory · Computer Science 2016-02-23 George R. MacCartney , Sija Deng , Theodore S. Rappaport

Next generation cellular deployments are expected to exploit the 6-24 GHz frequency range 3 (FR3) and extremely large-scale multiple-input multiple-output (XL-MIMO) to enable ultra-high data rates and reliability. However, the significantly…

Industry 4.0 relies heavily on wireless technologies. Energy efficiency and device cost have played a significant role in the initial design of such wireless systems for industry automation. However, high reliability, high throughput, and…

Networking and Internet Architecture · Computer Science 2019-03-27 Adrian Loch , Cristina Cano , Gek Hong , Sim , Arash Asadi , Xavier Vilajosana

Millimeter Wave (mmWave) massive Multiple Input Multiple Output (MIMO) systems realizing directive beamforming require reliable estimation of the wireless propagation channel. However, mmWave channels are characterized by high variability…

Information Theory · Computer Science 2019-06-07 Evangelos Vlachos , George C. Alexandropoulos , John Thompson

Recently, the use of millimeter wave (mmW) frequencies has emerged as a promising solution for wirelessly connecting unmanned aerial vehicles (UAVs) to ground users. However, employing UAVassisted directional mmW links is challenging due to…

Signal Processing · Electrical Eng. & Systems 2020-03-03 Mohammad Taghi Dabiri , Mohsen Rezaee , Behrouz Maham , Walid Saad , Choong Seon Hong

This paper presents details and applications of a novel channel simulation software named NYUSIM, which can be used to generate realistic temporal and spatial channel responses to support realistic physical- and link-layer simulations and…

Information Theory · Computer Science 2017-04-03 Shu Sun , George R. MacCartney , Theodore S. Rappaport

Extensive work has been carried out in the past year by various organizations in an effort to determine standardized statistical channel impulse response (CIR) parameters for the newly-released FR3 mid-band spectrum (7.25 GHz -- 24.25 GHz).…

Signal Processing · Electrical Eng. & Systems 2025-03-27 Theodore S. Rappaport , Dipankar Shakya , Mingjun Ying