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相关论文: Blockage-aware Reliable mmWave Access via Coordina…

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This paper investigates the coexistence between two key enabling technologies for the fifth generation (5G) mobile networks, non-orthogonal multiple access (NOMA) and millimeter-wave (mmWave) communications. Particularly, the application of…

信息论 · 计算机科学 2017-03-17 Z. Ding , P. Fan , H. V. Poor

Millimetre-wave (mmWave) technology is a promising candidate for meeting the intensifying demand for ultra fast wireless connectivity, especially in high-end enterprise networks. Very narrow beam forming is mandatory to mitigate the severe…

网络与互联网体系结构 · 计算机科学 2018-02-02 Nicolo Facchi , Francesco Gringoli , Paul Patras

In millimeter wave (mmWave) communication systems, narrow beam operations overcome severe channel attenuations, reduce multiuser interference, and thus introduce the new concept of noise-limited mmWave wireless networks. The regime of the…

信息论 · 计算机科学 2015-10-02 Hossein Shokri-Ghadikolaei , Carlo Fischione

Reconfigurable intelligent surface (RIS) assisted millimeter-wave (mmWave) communication systems relying on hybrid beamforming structures are capable of achieving high spectral efficiency at a low hardware complexity and low power…

信号处理 · 电气工程与系统科学 2022-01-13 Chenghao Feng , Wenqian Shen , Jianping An , Lajos Hanzo

Advancements in 6G wireless technology have elevated the importance of beamforming, especially for attaining ultra-high data rates via millimeter-wave (mmWave) frequency deployment. Although promising, mmWave bands require substantial beam…

网络与互联网体系结构 · 计算机科学 2024-07-31 Avi Deb Raha , Kitae Kim , Apurba Adhikary , Mrityunjoy Gain , Zhu Han , Choong Seon Hong

Millimeter-wave (mmWave) hybrid analog-digital beamforming is a promising approach to satisfy the low-latency constraint in multiple unmanned aerial vehicles (UAVs) systems, which serve as network infrastructure for flexible deployment.…

This paper optimizes the beamforming design of a downlink multiple-input multiple-output (MIMO) dual-function radar-communication (DFRC) system to maximize the weighted communication sum-rate under a prescribed transmit covariance…

信号处理 · 电气工程与系统科学 2023-09-18 Chenhao Yang , Xin Wang , Wei Ni , Yi Jiang

Millimeter-wave (mmWave) offers high data rate and bandwidth for air-to-everything (A2X) communications including air-to-air, air-to-ground, and air-to-tower. MmWave communication in the A2X network is sensitive to buildings blockage…

信息论 · 计算机科学 2018-08-02 Kaifeng Han , Kaibin Huang , Robert W. Heath

A critical challenge for wireless communications in the millimeter wave (mmWave) bands is blockage. MmWave signals suffer significant penetration losses from many common materials and objects, and small changes in the position of obstacles…

信息论 · 计算机科学 2018-06-27 Christopher Slezak , Menglei Zhang , Marco Mezzavilla , Sundeep Rangan

For high-speed train (HST) millimeter wave (mmWave) communications, the use of narrow beams with small beam coverage needs frequent beam switching, while wider beams with small beam gain leads to weaker mmWave signal strength. In this…

信息论 · 计算机科学 2024-11-28 Jingjia Huang , Chenhao Qi , Octavia A. Dobre , Geoffrey Ye Li

This thesis considers channel estimation and multiuser (MU) data transmission for massive MIMO systems with fully digital/hybrid structures in mmWave channels. It contains three main contributions. In this thesis, we first propose a…

信息论 · 计算机科学 2018-12-03 Lou Zhao

In this paper, reconfigurable intelligent surface (RIS) is employed in a millimeter wave (mmWave) integrated sensing and communications (ISAC) system. To alleviate the multi-hop attenuation, the semi-self sensing RIS approach is adopted,…

信号处理 · 电气工程与系统科学 2024-01-03 Wanting Lyu , Songjie Yang , Yue Xiu , Ya Li , Hongjun He , Chau Yuen , Zhongpei Zhang

The millimeter wave (mmWave) band has the potential to provide high throughput among wearable devices. When mmWave wearable networks are used in crowded environments, such as on a bus or train, antenna directivity and orientation hold the…

信息论 · 计算机科学 2015-12-03 Kiran Venugopal , Matthew C. Valenti , Robert W. Heath

Owing to severe path loss and unreliable transmission over a long distance at higher frequency bands, we investigate the problem of path selection and rate allocation for multi-hop self-backhaul millimeter wave (mmWave) networks. Enabling…

网络与互联网体系结构 · 计算机科学 2019-03-11 Trung Kien Vu , Mehdi Bennis , Merouane Debbah , Matti Latva-aho

Intelligent reflecting surface (IRS) technology offers more feasible propagation paths for millimeter-wave (mmWave) communication systems to overcome blockage than existing technologies. In this paper, we consider a downlink wireless system…

信号处理 · 电气工程与系统科学 2021-01-22 Yue Xiu , Yang Zhao , Yang Liu , Jun Zhao , Osman Yagan , Ning Wei

A significant portion of the 5th generation of wireless networks will operate in the mm-wave bands. One of the several challenges associated with mm-wave propagation is to overcome shadowing due to signal blockage caused by environmental…

信息论 · 计算机科学 2019-10-01 Swapnil Mhaske , Predrag Spasojevic , Ahsan Aziz

Due to the rapid densification of small cells in 5G and beyond cellular networks, deploying wired high-bandwidth connections to every small cell base station is difficult, particularly in older metropolitan areas where infrastructure for…

网络与互联网体系结构 · 计算机科学 2020-10-27 Yuchen Liu , Qiang Hu , Douglas M. Blough

This paper conceives a hybrid beamforming design (HBF) that maximizes the energy efficiency (EE) of an integrated sensing and communication (ISAC)-enabled millimeter wave (mmWave) multiple-input multiple-output (MIMO) system. In the system…

信号处理 · 电气工程与系统科学 2024-06-07 Jitendra Singh , Suraj Srivastava , Aditya K. Jagannatham

Communicating on millimeter wave (mmWave) bands is ushering in a new epoch of mobile communication which provides the availability of 10 Gbps high data rate transmission. However, mmWave links are easily prone to short transmission range…

信号处理 · 电气工程与系统科学 2022-05-31 Yi Wang , Zhiqing Wei , Zhiyong Feng

As a cost-effective alternative, hybrid analog and digital beamforming architecture is a promising scheme for millimeter wave (mmWave) system. This paper considers two hybrid beamforming architectures, i.e. the partially-connected and…

信号处理 · 电气工程与系统科学 2022-09-07 Bowen Wang , Ziyang Cheng , Zishu He