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We present a multi-node, multi-objective open-loop microwave distributed beamforming system based on high-accuracy wireless synchronization and localization. Distributed beamforming requires accurate coordination of the spatial and…

信号处理 · 电气工程与系统科学 2024-07-23 Ahona Bhattacharyya , Jeffrey A. Nanzer

Dual-functional radar-communication (DFRC) signal design has received much attention lately. We consider the scenario of one-bit massive multi-input multi-output (MIMO) wherein one-bit DACs are employed for the sake of saving hardware…

信号处理 · 电气工程与系统科学 2025-01-28 Wai-Yiu Keung , Hei Victor Cheng , Wing-Kin Ma

The availability of large bandwidth at millimeter wave (mmWave) frequencies is one of the major factors that rendered very high frequencies a promising candidate enabler for fifth generation (5G) mobile communication networks. To confront…

信息论 · 计算机科学 2016-10-04 George C. Alexandropoulos , Symeon Chouvardas

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

Detecting weak targets is one of the main challenges for integrated sensing and communication (ISAC) systems. Sensing and communication suffer from a performance trade-off in ISAC systems. As the communication demand increases, sensing…

信号处理 · 电气工程与系统科学 2024-11-04 Zongyao Zhao , Zhenyu Liu , Rui Jiang , Zhongyi Li , Xiao-Ping Zhang , Xinke Tang , Yuhan Dong

Analog beamforming holds great potential for future terahertz (THz) communications due to its ability to generate high-gain directional beams with low-cost phase shifters.However, conventional analog beamforming may suffer substantial…

信号处理 · 电气工程与系统科学 2025-03-12 Yike Xie , Weidong Mei , Dong Wang , Boyu Ning , Zhi Chen , Jun Fang , Wei Guo

In this paper, we investigate a coordinated multipoint (CoMP) beamforming and power control problem for base stations (BSs) with a massive number of antenna arrays under coarse quantization at low-resolution analog-to-digital converters…

信息论 · 计算机科学 2020-05-19 Jinseok Choi , Yunseong Cho , Brian L. Evans

This paper studies the transmit waveform optimization for a quantized multiple-input multiple-output (MIMO) integrated sensing and communication (ISAC) system, where one-bit analog-to-digital converters (ADCs) are employed to enable a…

信号处理 · 电气工程与系统科学 2026-04-09 Qi Lin , Hong Shen , Wei Xu , Chunming Zhao

In this work, we present a solution for coordinated beamforming and power allocation when base stations employ a massive number of antennas equipped with low-resolution analog-to-digital and digital-to-analog converters. We address total…

信息论 · 计算机科学 2021-03-09 Yunseong Cho , Jinseok Choi , Brian L. Evans

Enhancing high-speed wireless communication in the future relies significantly on harnessing high frequency bands effectively. These bands predominantly operate in line-of-sight (LoS) paths, necessitating well-configured antenna arrays and…

信息论 · 计算机科学 2024-04-09 Jiyoung Yun , Hojun Rho , Wan Choi

The use of low-precision analog-to-digital converters (ADCs) is a low-cost and power-efficient solution for a millimeter wave (mmWave) multiple-input multiple-output (MIMO) system operating at sampling rates higher than a few Gsample/sec.…

信息论 · 计算机科学 2018-11-30 Yo-Seb Jeon , Heedong Do , Song-Nam Hong , Namyoon Lee

This paper studies the coordinated beamforming design problem for the multiple-input single-output (MISO) interference channel, assuming only channel distribution information (CDI) at the transmitters. Under a given requirement on the rate…

信息论 · 计算机科学 2016-11-18 Wei-Chiang Li , Tsung-Hui Chang , Che Lin , Chong-Yung Chi

To perform multi-user multiple-input and multiple-output transmission in millimeter-wave(mmWave) cellular systems, the high-dimensional channels need to be estimated for designing the multi-user precoder. Conventional grid-based compressed…

信息论 · 计算机科学 2018-02-15 Junquan Deng , Olav Tirkkonen , Christoph Studer

Millimeter-wave massive multiple-input multiple-output systems employ highly directional beamforming to overcome severe path loss, and their performance critically depends on accurate beam alignment. Conventional codebook-based methods…

信号处理 · 电气工程与系统科学 2026-02-26 Weijie Jin , Jing Zhang , Hengtao He , Chao-Kai Wen , Xiao Li , Shi Jin

Envisioned for fifth generation (5G) systems, millimeter-wave (mmWave) communications are under very active research worldwide. Although pencil beams with accurate beamtracking may boost the throughput of mmWave systems, this poses great…

网络与互联网体系结构 · 计算机科学 2019-08-29 Rafail Ismayilov , Megumi Kaneko , Takefumi Hiraguri , Kentaro Nishimori

As a key enabling technology for 5G wireless, millimeter wave (mmWave) communication motivates the utilization of large-scale antenna arrays for achieving highly directional beamforming. However, the high cost and power consumption of RF…

信息论 · 计算机科学 2018-07-04 Qingjiang Shi , Mingyi Hong

Millimeter wave (mmWave) systems operating over a wide bandwidth and using a large number of antennas impose a heavy burden on power consumption. In a massive multiple-input multiple-output (MIMO) uplink, analog-to-digital con- verters…

信息论 · 计算机科学 2017-02-28 Jinseok Choi , Brian L. Evans , Alan Gatherer

Millimeter-wave (mmWave) joint communication-radar (JCR) will enable high data rate communication and high-resolution radar sensing for applications such as autonomous driving. Prior JCR systems that are based on the mmWave communications…

信号处理 · 电气工程与系统科学 2024-10-30 Preeti Kumari , Nitin Jonathan Myers , Robert W. Heath

Millimeter-wave (mmWave) communications and cell densification are the key techniques for the future evolution of cellular systems beyond 5G. Although the current mmWave radio designs are focused on hybrid digital and analog receiver array…

信号处理 · 电气工程与系统科学 2020-04-06 Han Yan , Danijela Cabric

This paper focuses on multiuser MIMO channel estimation and data transmission at millimeter wave (mmWave) frequencies. The proposed approach relies on the time-division-duplex (TDD) protocol and is based on two distinct phases. First of…

信息论 · 计算机科学 2017-04-25 Stefano Buzzi , Carmen D'Andrea