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Hybrid beamforming is key to achieving energy-efficient 5G wireless networks equipped with massive amount of antennas. Low-resolution data converters bring yet another degree of freedom to energy efficiency for the state-of-the-art 5G…

信号处理 · 电气工程与系统科学 2019-09-19 Sung Joon Maeng , Yavuz Yapıcı , Ismail Guvenc , Huaiyu Dai , Arupjyoti Bhuyan

In this paper, we develop a deep learning (DL)-guided hybrid beam and power allocation approach for multiuser millimeter-wave (mmWave) networks, which facilitates swift beamforming at the base station (BS). The following persisting…

信号处理 · 电气工程与系统科学 2023-05-24 Yuwen Cao , Tomoaki Ohtsuki , Setareh Maghsudi , Tony Q. S. Quek

Millimeter wave (mmWave) communication is a key component of 5G and beyond. Harvesting the gains of the large bandwidth and low latency at mmWave systems, however, is challenged by the sensitivity of mmWave signals to blockages; a sudden…

机器学习 · 计算机科学 2021-02-09 Shunyao Wu , Muhammad Alrabeiah , Andrew Hredzak , Chaitali Chakrabarti , Ahmed Alkhateeb

The sensitivity of millimeter wave (mmWave) signals to blockages is a fundamental challenge for mobile mmWave communication systems. The sudden blockage of the line-of-sight (LOS) link between the base station and the mobile user normally…

信息论 · 计算机科学 2018-07-11 Ahmed Alkhateeb , Iz Beltagy

Millimeter-wave (mmWave) massive multiple-input multiple-output (MIMO) with hybrid precoding is a promising technique for the future 5G wireless communications. Due to a large number of antennas but a much smaller number of radio frequency…

信息论 · 计算机科学 2017-10-31 Anwen Liao , Zhen Gao , Yongpeng Wu , Hua Wang , Mohamed-Slim Alouini

Exploiting the millimeter wave (mmWave) band has recently attracted considerable attention as a potential solution to widespread deployment of device-to-device (D2D) communication challenges, namely, spectrum scarcity and interference.…

信号处理 · 电气工程与系统科学 2019-06-17 Niloofar Bahadori , Nima Namvar , Brian Kelley , Abdollah Homaifar

We propose a novel linear minimum-mean-squared-error (MMSE) precoder design for a downlink (DL) massive multiple-input-multiple-output (MIMO) scenario. For economical and computational efficiency reasons low resolution 1-bit…

信息论 · 计算机科学 2017-06-28 Ovais Bin Usman , Hela Jedda , Amine Mezghani , Josef A. Nossek

Efficient link configuration in millimeter wave (mmWave) communication systems is a crucial yet challenging task due to the overhead imposed by beam selection. For vehicle-to-infrastructure (V2I) networks, side information from LIDAR…

信息论 · 计算机科学 2021-07-27 Mahdi Boloursaz Mashhadi , Mikolaj Jankowski , Tze-Yang Tung , Szymon Kobus , Deniz Gunduz

Millimeter-wave (mmWave) channels, which occupy frequency ranges much higher than those being used in previous wireless communications systems, are utilized to meet the increased throughput requirements that come with 5G communications. The…

信号处理 · 电气工程与系统科学 2023-02-16 Esen Özbay

Millimeter-wave (mmWave) systems use directional beams to support high-rate data communications. Small misalignment between the transmit and receive beams (e.g., due to the mobility) can result in significant drop of the received signal…

信号处理 · 电气工程与系统科学 2018-02-13 Dalin Zhu , Junil Choi , Qian Cheng , Weimin Xiao , Robert W. Heath

The millimeter wave (mmWave) bands offer the possibility of orders of magnitude greater throughput for fifth generation (5G) cellular systems. However, since mmWave signals are highly susceptible to blockage, channel quality on any one…

网络与互联网体系结构 · 计算机科学 2018-09-07 Michele Polese , Marco Giordani , Marco Mezzavilla , Sundeep Rangan , Michele Zorzi

This work focuses on the downlink communication of a multiuser MIMO system where the base station antennas and the users' receiving antennas are all active, but at each transmission, only a subset of the receive antennas is selected by the…

信号处理 · 电气工程与系统科学 2018-03-21 Azucena Duarte , Raimundo Sampaio-Neto

Millimeter wave (mmWave) communications have been considered as a key technology for future 5G wireless networks. In order to overcome the severe propagation loss of mmWave channel, mmWave multiple-input multiple-output (MIMO) systems with…

信息论 · 计算机科学 2017-04-27 Xiaowen Tian , Ming Li , Zihuan Wang , Qian Liu

In millimeter-wave (mmWave) MIMO systems, while a hybrid digital/analog precoding structure offers the potential to increase the achievable rate, it also faces the challenge of the need of a low-complexity design. In specific, the hybrid…

信息论 · 计算机科学 2016-03-08 Zhenyu Xiao , Pengfei Xia , Xiang-Gen Xia

Communication at millimeter wave (mmWave) frequencies is defining a new era of wireless communication. The mmWave band offers higher bandwidth communication channels versus those presently used in commercial wireless systems. The…

信息论 · 计算机科学 2016-05-04 Robert W. Heath , Nuria Gonzalez-Prelcic , Sundeep Rangan , Wonil Roh , Akbar Sayeed

We consider a single-cell scenario involving a single base station (BS) with a massive array serving multi-antenna terminals in the downlink of a mmWave channel. We present a class of multiuser user MIMO schemes, which rely on uplink…

Future cellular systems based on the use of above-6 GHz frequencies, the so-called millimeter wave (mmWave) bandwidths, will heavily rely on the use of antenna arrays both at the transmitter and at the receiver, possibly with a large number…

信息论 · 计算机科学 2016-10-25 Stefano Buzzi , Carmen D'Andrea

We consider the problem of uplink channel estimation for millimeter wave (mmWave) systems, where the base station (BS) and mobile stations (MSs) are equipped with large antenna arrays to provide sufficient beamforming gain for outdoor…

信息论 · 计算机科学 2016-02-26 Zhou Zhou , Jun Fang , Linxiao Yang , Hongbin Li , Zhi Chen , Shaoqian Li

The exploitation of the mm-wave bands is one of the most promising solutions for 5G mobile radio networks. However, the use of mm-wave technologies in cellular networks is not straightforward due to mm-wave harsh propagation conditions that…

网络与互联网体系结构 · 计算机科学 2016-05-19 Antonio Capone , Ilario Filippini , Vincenzo Sciancalepore

We consider the problem of spatial signal design for multipath-assisted mmWave positioning under limited prior knowledge on the user's location and clock bias. We propose an optimal robust design and, based on the low-dimensional precoder…

信号处理 · 电气工程与系统科学 2022-02-09 Musa Furkan Keskin , Fan Jiang , Florent Munier , Gonzalo Seco-Granados , Henk Wymeersch