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With the evolution of the 5G, 6G and beyond, device-to-device (D2D) communication has been developed as an energy-, and spectrum-efficient solution. In cellular network, D2D links need to share the same spectrum resources with the cellular…

信息论 · 计算机科学 2020-07-03 Yali Chen , Bo Ai , Hongliang Zhang , Yong Niu , Lingyang Song , Zhu Han , H. Vincent Poor

We study joint downlink-uplink beamforming design for wireless federated learning (FL) with a multi-antenna base station. Considering analog transmission over noisy channels and uplink over-the-air aggregation, we derive the global model…

信息论 · 计算机科学 2023-07-04 Chong Zhang , Min Dong , Ben Liang , Ali Afana , Yahia Ahmed

Binary semantic segmentation in computer vision is a fundamental problem. As a model-based segmentation method, the graph-cut approach was one of the most successful binary segmentation methods thanks to its global optimality guarantee of…

计算机视觉与模式识别 · 计算机科学 2023-12-11 Hui Xie , Weiyu Xu , Ya Xing Wang , John Buatti , Xiaodong Wu

Position-aided beam selection methods have been shown to be an effective approach to achieve high beamforming gain while limiting the overhead and latency of initial access in millimeter wave (mmWave) communications. Most research in the…

信号处理 · 电气工程与系统科学 2021-10-14 Sajad Rezaie , Elisabeth de Carvalho , Carles Navarro Manchón

Huge overhead of beam training imposes a significant challenge in millimeter-wave (mmWave) wireless communications. To address this issue, in this paper, we propose a wide beam based training approach to calibrate the narrow beam direction…

信号处理 · 电气工程与系统科学 2021-07-21 Ke Ma , Dongxuan He , Hancun Sun , Zhaocheng Wang , Sheng Chen

Hierarchical beam search in mmWave communications incurs substantial training overhead, necessitating deep learning-enabled beam predictions to effectively leverage channel priors and mitigate this overhead. In this study, we introduce a…

信息论 · 计算机科学 2024-01-04 Fan Meng , Cheng Zhang , Yongming Huang , Zhilei Zhang , Xiaoyu Bai , Zhaohua Lu

Cell-free massive MIMO systems consist of many distributed access points with simple components that jointly serve the users. In millimeter wave bands, only a limited set of predetermined beams can be supported. In a network that…

信息论 · 计算机科学 2021-07-05 Cenk M. Yetis , Emil Björnson , Pontus Giselsson

We study a fundamental problem called Minimum Length Link Scheduling (MLLS) which is crucial to the efficient operations of wireless networks. Given a set of communication links of arbitrary length spread and assume each link has one unit…

网络与互联网体系结构 · 计算机科学 2012-08-06 Xiaohua Xu , Jiannong Cao , Xiang-Yang Li

Millimeter wave (mmWave) communication is one feasible solution for high data-rate applications like vehicular-to-everything communication and next generation cellular communication. Configuring mmWave links, which can be done through…

信息论 · 计算机科学 2017-03-01 Anum Ali , Nuria González-Prelcic , Robert W. Heath

Considering higher-order interactions allows for a more comprehensive understanding of network structures beyond simple pairwise connections. While leveraging all cliques in a network to handle higher-order interactions is intuitive, it…

社会与信息网络 · 计算机科学 2025-09-30 Eunho Koo , Tongseok Lim

Millimeter-wave (mmWave) communication is a promising technology to cope with the exponential increase in 5G data traffic. Such networks typically require a very dense deployment of base stations. A subset of those, so-called macro base…

网络与互联网体系结构 · 计算机科学 2020-07-07 Dingwen Yuan , Hsuan-Yin Lin , Jörg Widmer , Matthias Hollick

Increasing data rate in wireless networks can be accomplished through a two-pronged approach, which are 1) increasing the network flow rate through parallel independent routes and 2) increasing the user's link rate through beamforming…

信号处理 · 电气工程与系统科学 2020-09-15 Ahmed S. Ibrahim

As the number of mobile devices continues to grow, interference has become a major bottleneck in improving data rates in wireless networks. Efficient joint channel and power allocation (JCPA) is crucial for managing interference. In this…

机器学习 · 计算机科学 2025-06-05 Lili Chen , Changyang She , Jingge Zhu , Jamie Evans

Machine-to-machine (M2M) communication's severe power limitations challenge the interconnectivity, access management, and reliable communication of data. In densely deployed M2M networks, controlling and aggregating the generated data is…

信息论 · 计算机科学 2015-11-24 Derya Malak , Harpreet S. Dhillon , Jeffrey G. Andrews

In wireless network, the optimization problems generally have complex constraints, and are usually solved via utilizing the traditional optimization methods that have high computational complexity and need to be executed repeatedly with the…

信息论 · 计算机科学 2022-01-25 Shiwen He , Shaowen Xiong , Zhenyu An , Wei Zhang , Yongming Huang , Yaoxue Zhang

We consider the problem of distributed downlink beam scheduling and power allocation for millimeter-Wave (mmWave) cellular networks where multiple base stations (BSs) belonging to different service operators share the same unlicensed…

信息论 · 计算机科学 2021-10-19 Xiang Zhang , Shamik Sarkar , Arupjyoti Bhuyan , Sneha Kumar Kasera , Mingyue Ji

The millimeter wave (mmWave) frequencies offer the potential of orders of magnitude increases in capacity for next-generation cellular systems. However, links in mmWave networks are susceptible to blockage and may suffer from rapid…

网络与互联网体系结构 · 计算机科学 2020-04-27 Marco Giordani , Marco Mezzavilla , Sundeep Rangan , Michele Zorzi

Device-to-device (D2D) technology enables direct communication between adjacent devices within cellular networks. Due to its high data rate, low latency, and performance improvement in spectrum and energy efficiency, it has been widely…

网络与互联网体系结构 · 计算机科学 2024-10-07 Yang Yu , Xiaoqing Tang

With the advantages of Millimeter wave in wireless communication network, the coverage radius and inter-site distance can be further reduced, the ultra dense network (UDN) becomes the mainstream of future networks. The main challenge faced…

网络与互联网体系结构 · 计算机科学 2020-04-20 Zhipeng Cheng , Minghui LiWangy , Ning Chen , Hongyue Lin , Zhibin Gao , Lianfen Huang

6G networks are expected to integrate low Earth orbit satellites to ensure global connectivity by extending coverage to underserved and remote regions. However, the deployment of dense mega-constellations introduces severe interference…

信息论 · 计算机科学 2025-11-12 Sourav Mukherjee , Bho Matthiesen , Armin Dekorsy , Petar Popovski