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In this paper a novel frequency-scalable rotary platform design is introduced which allows for flexible directional channel measurements using different types of antennas, and which can also be used with frequency extenders for measurements…

信号处理 · 电气工程与系统科学 2025-02-14 Wilhelm Keusgen , Taro Eichler

Fixed wireless access at mm/cm bands has been proposed for high-speed broadband access to suburban residential customers and building penetration loss is a key parameter. We report a measurement campaign at 28 GHz in a New Jersey suburban…

The use of millimeter wave (mmWave) spectrum for commercial wireless communications is expected to offer data rates in the order of Gigabits-per-second, thus able to support future applications such as Vehicle-to-Vehicle or…

信号处理 · 电气工程与系统科学 2020-02-20 Anastasios Dimas , Dionysios S. Kalogerias , Athina P. Petropulu

Simultaneous use of high-end wearable wireless devices like smart glasses is challenging in a dense indoor environment due to the high nature of interference. In this scenario, the millimeter wave (mmWave) band offers promising potential…

信息论 · 计算机科学 2016-06-14 Kiran Venugopal , Robert W. Heath

In future wireless communication systems, millimeter waves (mmWaves) will play an important role in meeting high data rates. However, due to their short wavelengths, these mmWaves present high propagation losses and are highly attenuated by…

网络与互联网体系结构 · 计算机科学 2025-01-16 Mbissane Dieng , Gheorghe Zaharia , Ghaïs El Zein , Raphaël Gillard , Renaud Loison

Millimeter-wave (mm-wave) is a promising technique to enhance the network capacity and coverage of next-generation (5G) based on utilizing a great number of available spectrum resources in mobile communication. Improving the 5G network…

Millimeter wave (mm-wave) communication with large-scale antenna array configuration is seen as the key enabler of the next generation communication systems. Accurate knowledge of the mm-wave propagation channels is fundamental and…

信号处理 · 电气工程与系统科学 2021-07-15 Xuesong Cai , Wei Fan

The first measured results for massive multiple-input, multiple-output (MIMO) performance in a line-of-sight (LOS) scenario with moderate mobility are presented, with 8 users served by a 100 antenna base Station (BS) at 3.7 GHz. When such a…

Millimeter-wave (mmWave) technology holds the potential to revolutionize head-mounted displays (HMDs) by enabling high-speed wireless communication with nearby processing nodes, where complex video rendering can take place. However, the…

信号处理 · 电气工程与系统科学 2024-05-01 Alexander Marinek , Xuesong Cai , Lieven De Strycker , Fredrik Tufvesson , Liesbet Van der Perre

In this paper, millimeter wave (mmWave) wireless channel characteristics (Doppler spread and path loss modeling) for Unmanned Aerial Vehicles (UAVs) assisted communication is analyzed and studied by emulating the real UAV motion using a…

信号处理 · 电气工程与系统科学 2021-03-23 Amit Kachroo , Collin A. Thornton , Md Arifur Rahman Sarker , Wooyeol Choi , He Bai , Ickhyun Song , John O'Hara , Sabit Ekin

Configuring the antenna arrays is the main source of overhead in millimeter wave (mmWave) communication systems. In high mobility scenarios, the problem is exacerbated, as achieving the highest rates requires frequent link reconfiguration.…

信息论 · 计算机科学 2017-05-04 Nuria González-Prelcic , Anum Ali , Vutha Va , Robert W. Heath

In this paper, we address the problem of three dimensional beamforming in millimeter wave (mmWave) wireless networks. In particular, we study the impact of base station (BS) antenna tilt angle optimization on the energy efficiency (EE) of…

信号处理 · 电气工程与系统科学 2018-12-05 Mahdi Baianifar

We propose a novel analytical framework for evaluating the coverage performance of a millimeter wave (mmWave) cellular network where idle user equipments (UEs) act as relays. In this network, the base station (BS) adopts either the direct…

信息论 · 计算机科学 2019-12-30 Simin Xu , Nan Yang , Biao He , Hamid Jafarkhani

In this paper, the field measurements of signal strength taken at the frequency of 2432 MHz in indoor & outdoor environments are presented and analyzed. The received signal levels from the base station were monitored manually. Total…

网络与互联网体系结构 · 计算机科学 2013-09-06 Puneet Kumar Mongia , B. J. Singh

Full-duplex (FD) technique can remarkably boost the network capacity in the millimeter wave (mmWave) bands by enabling simultaneous transmission and reception. However, due to directional transmission and large bandwidth, the throughput and…

网络与互联网体系结构 · 计算机科学 2023-05-31 Shengbo Liu , Wen Wu , Liqun Fu , Kaige Qu , Qiang Ye , Weihua Zhuang , Sherman Shen

This paper investigates the uplink channel estimation of the millimeter-wave (mmWave) extremely large-scale multiple-input-multiple-output (XL-MIMO) communication system in the beam-delay domain, taking into account the near-field and…

信号处理 · 电气工程与系统科学 2024-10-28 Hongwei Hou , Xuan He , Tianhao Fang , Xinping Yi , Wenjin Wang , Shi Jin

In this paper, we provide an analytical framework to analyze the uplink performance of device-to-device (D2D)-enabled millimeter wave (mmWave) cellular networks. Signal-to- interference-plus-noise ratio (SINR) outage probabilities are…

信息论 · 计算机科学 2017-04-05 Esma Turgut , M. Cenk Gursoy

We have mapped the total sky brightness at 1465 MHz in two adjacent 60-degree declination bands with the portable 5.5-m parabolic reflector of the Galactic Emission Mapping (GEM) project, an on-going international collaboration to survey…

天体物理学 · 物理学 2007-05-23 C. Tello , T. Villela , G. F. Smoot , S. Torres , M. Bersanelli

Long Range (LoRa) is a popular technology used to construct Low-Power Wide-Area Network (LPWAN) networks. Given the popularity of LoRa it is likely that multiple independent LoRa networks are deployed in close proximity. In this situation,…

网络与互联网体系结构 · 计算机科学 2016-11-03 Thiemo Voigt , Martin Bor , Utz Roedig , Juan Alonso

In this paper, we analyze the achievable rate of the uplink of a single-cell multi-user distributed massive multiple-input-multiple-output (MIMO) system. The multiple users are equipped with single antenna and the base station (BS) is…

信息论 · 计算机科学 2016-11-17 Ang Yang , Yindi Jing , Chengwen Xing , Zesong Fei , Jingming Kuang