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相关论文: Beam Scheduling in Millimeter Wave Networks Using …

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Multibeam high throughput satellite (MB-HTS) systems will play a key role in delivering broadband services to a large number of users with diverse Quality of Service (QoS) requirements. This paper focuses on MB-HTS where the same spectrum…

信息论 · 计算机科学 2021-06-25 Trinh Van Chien , Eva Lagunas , Tung Hai Ta , Symeon Chatzinotas , Björn Ottersten

For future networks (i.e., the fifth generation (5G) wireless networks and beyond), millimeter-wave (mmWave) communication with large available unlicensed spectrum is a promising technology that enables gigabit multimedia applications.…

网络与互联网体系结构 · 计算机科学 2018-10-03 Qing Xue , Xuming Fang , Cheng-Xiang Wang

In a millimeter wave (mmWave) network, user association, the process of deciding as to which base station (BS) a given user should associate with, is a crucial process which affects the throughput and delay performance seen by users in the…

信号处理 · 电气工程与系统科学 2020-03-16 Vaibhav Kumar Gupta , Gaurav S Kasbekar

Mobile-edge computing (MEC) offloads computational tasks from wireless devices to network edge, and enables real-time information transmission and computing. Most existing work concerns a small-scale synchronous MEC system. In this paper,…

信息论 · 计算机科学 2021-02-03 Yizhen Xu , Peng Cheng , Zhuo Chen , Ming Ding , Branka Vucetic , Yonghui Li

Conventional multi-user scheduling schemes are designed based on instantaneous channel state information (CSI), indicating that decisions must be made every transmission time interval (TTI) which lasts at most several milliseconds. Only…

信号处理 · 电气工程与系统科学 2023-04-28 Xin Guan , Zhixing Chen , Yibin Kang , Qingjiang Shi

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

We investigate a pilot allocation problem in wireless networks over Markovian fading channels. In wireless systems, the Channel State Information (CSI) is collected at the Base Station (BS), in particular, this paper considers a pilot-aided…

最优化与控制 · 数学 2016-08-31 Maialen Larranaga , Mohamad Assaad , Apostolos Destounis , Georgios S. Paschos

In this paper, a multi-scale approach to spectrum sensing in cognitive cellular networks is proposed. In order to overcome the huge cost incurred in the acquisition of full network state information, a hierarchical scheme is proposed, based…

信息论 · 计算机科学 2017-02-28 Nicolo Michelusi , Matthew Nokleby , Urbashi Mitra , Robert Calderbank

We investigate the problem of wireless beam tracking on mmWave bands with the assistance of camera images. In particular, based on the user's beam indices used and camera images taken in the trajectory, we predict the optimal beam indices…

机器学习 · 计算机科学 2021-10-01 Yu Tian , Chenwei Wang

Millimeter wave (mmW) bands between 30 and 300 GHz have attracted considerable attention for next-generation cellular networks due to vast quantities of available spectrum and the possibility of very high-dimensional antenna ar-rays.…

网络与互联网体系结构 · 计算机科学 2016-11-15 Russell Ford , Felipe Gomez-Cuba , Marco Mezzavilla , Sundeep Rangan

Technologies for mmWave communication are at the forefront of investigations in both industry and academia, as the mmWave band offers the promise of orders of magnitude additional available bandwidths to what has already been allocated to…

信息论 · 计算机科学 2016-11-15 Weng Chon Ao , Chenwei Wang , Ozgun Y. Bursalioglu , Haralabos Papadopoulos

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

Consider the problem of joint uplink scheduling and power allocation. Being inherent to almost any wireless system, this resource allocation problem has received extensive attention. Yet, most common techniques either adopt classical power…

网络与互联网体系结构 · 计算机科学 2015-03-20 Erez Biton , Asaf Cohen , Guy Reina , Omer Gurewitz

In wireless communication systems, mmWave beam tracking is a critical task that affects both sensing and communications, as it is related to the knowledge of the wireless channel. We consider a setup in which a Base Station (BS) needs to…

信号处理 · 电气工程与系统科学 2023-06-28 Cristian J. Vaca-Rubio , Carles Navarro Manchón , Ramoni Adeogun , Petar Popovski

Energy efficiency is a growing concern for wireless networks, not only due to the emerging traffic demand from smart devices, but also because of the dependence on the traditional unsustainable energy and the overall environmental concerns.…

信息论 · 计算机科学 2014-05-23 Xueqing Huang , Nirwan Ansari

Enabling the high data rates of millimeter wave (mmWave) cellular systems requires deploying large antenna arrays at both the basestations and mobile users. The beamforming weights of these large arrays need to be tuned to guarantee…

信息论 · 计算机科学 2016-02-23 Ahmed Alkhateeb , Young-Han Nam , Md Saifur Rahman , Jianzhong Zhang , Robert W. Heath

Providing minimum quality-of-service (QoS) in crowded wireless communications systems, with high user density, is challenging due to the network structure with limited transmit power budget and resource blocks. Smart resource allocation…

信息论 · 计算机科学 2022-05-17 Joao Henrique Inacio de Souza , Jose Carlos Marinello , Abolfazl Amiri , Taufik Abrao

In this paper, we consider the design of joint resource blocks (RBs) and power allocation for dual-mode base stations operating over millimeter wave (mmW) band and microwave ($\mu$W) band. The resource allocation design aims to minimize the…

信息论 · 计算机科学 2019-02-06 Biqian Feng , Zhijun Liao , Yongpeng Wu , Juening Jin , Derrick Wing Kwan Ng , Xiang-Gen Xia , Xinbao Gong

In this paper, we investigate the beam training problem in the multi-user millimeter wave (mmWave) communication system, where multiple reconfigurable intelligent surfaces (RISs) are deployed to improve the coverage and the achievable rate.…

信息论 · 计算机科学 2024-04-10 Yuan Xu , Chongwen Huang , Li Wei , Zhaohui Yang , Xiaoming Chen , Zhaoyang Zhang , Chau Yuen , Mérouane Debbah

In this paper, we consider a hybrid millimeter wave (mmWave) and micro wave ($\mu$Wave) network from the perspective of \emph{wireless caching} and study the optimal probabilistic content/file caching placement at desirable base stations…

信号处理 · 电气工程与系统科学 2018-03-28 Sudip Biswas , Tong Zhang , Keshav Singh , Satyanarayana Vuppala , Tharmalingam Ratnarajah