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To enable user diversity and multiplexing gains, a fully digital precoding multiple input multiple output (MIMO) architecture is typically applied. However, a large number of radio frequency (RF) chains make the system unrealistic to…

Signal Processing · Electrical Eng. & Systems 2019-12-02 Tongyang Xu , Christos Masouros , Izzat Darwazeh

Millimeter Wave (mmWave) communications with full-duplex (FD) have the potential of increasing the spectral efficiency, relative to those with half-duplex. However, the residual self-interference (SI) from FD and high pathloss inherent to…

Signal Processing · Electrical Eng. & Systems 2020-04-20 Shaocheng Huang , Yu Ye , Ming Xiao

We investigate hybrid beamforming design for covert millimeter wave multiple-input multiple-output systems with finite-resolution digital-to-analog converters (DACs), which impose practical hardware constraints not yet considered by the…

Information Theory · Computer Science 2024-11-28 Wei Ci , Chenhao Qi , Xiaohu You

In mmWave massive multiple-input multiple-output (mMIMO) systems, hybrid digital/analog beamforming has been recognized as an economic means to overcome the severe mmWave propagation loss. To facilitate beamforming for mmWace mMIMO, there…

Signal Processing · Electrical Eng. & Systems 2019-12-19 Shijian Gao , Xiang Cheng , Liuqing Yang

Millimeter wave (mmWave) is a key technology for fifth-generation (5G) and beyond communications. Hybrid beamforming has been proposed for large-scale antenna systems in mmWave communications. Existing hybrid beamforming designs based on…

Signal Processing · Electrical Eng. & Systems 2022-02-07 Chia-Ho Kuo , Hsin-Yuan Chang , Ronald Y. Chang , Wei-Ho Chung

In the context of integrated sensing and communication (ISAC), a full-duplex (FD) transceiver can operate as a monostatic radar while maintaining communication capabilities. This paper investigates the design of precoders and combiners for…

Signal Processing · Electrical Eng. & Systems 2024-04-03 Murat Bayraktar , Nuria González-Prelcic , Hao Chen

In broadband millimeter-wave (mm-Wave) systems, it is desirable to design hybrid beamformers with common analog beamformer for the entire band while employing different baseband beamformers in different frequency sub-bands. Furthermore, the…

Signal Processing · Electrical Eng. & Systems 2019-11-01 Ahmet M. Elbir , Kumar Vijay Mishra

This paper considers a wideband millimeter-wave MIMO system with fully digital transceivers at both the base station and the user equipment (UE), focusing on mobile scenarios. To reduce the baseband processing burden at the UE, we propose a…

Signal Processing · Electrical Eng. & Systems 2026-03-30 Yasaman Khorsandmanesh , Emil Bjornson , Joakim Jalden , Bengt Lindoff

Given the high throughput requirement for 5G, merging millimeter wave technologies and multi-user MIMO seems a very promising strategy. As hardware limitations impede to realize a full digital architecture, hybrid MIMO architectures, using…

Information Theory · Computer Science 2018-04-10 Steve Blandino , Claude Desset , Cheng-Ming Chen , Andre Bourdoux , Sofie Pollin

This paper study the effect of interference management arising due to millimeter wave (mmWave) communication on the performance of multiple input multiple output (MIMO) based spectrum sharing cognitive systems. The highly directed mmWave…

Information Theory · Computer Science 2018-06-26 Abhishek Agrahari , Aditya K. Jagannatham

We propose practical transceiver structures for double-sided massive multiple-input-multiple-output (MIMO) systems. Unlike standard massive MIMO, both transmit and receive sides are equipped with high-dimensional antenna arrays. We leverage…

Signal Processing · Electrical Eng. & Systems 2019-11-12 Lucas N. Ribeiro , Stefan Schwarz , André L. F. de Almeida

Millimeter Wave (mmWave) massive Multiple Input Multiple Output (MIMO) systems realizing directive beamforming require reliable estimation of the wireless propagation channel. However, mmWave channels are characterized by high variability…

Information Theory · Computer Science 2019-06-07 Evangelos Vlachos , George C. Alexandropoulos , John Thompson

Hybrid analog/digital beamforming is a promising technique to realize millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) systems cost-effectively. However, existing hybrid beamforming designs mainly rely on real-time…

Information Theory · Computer Science 2022-06-20 Di Wu , Yong Zeng , Shi Jin , Rui Zhang

This paper proposes hybrid beamforming designs for millimeter-wave (mmWave) multiple-input multiple-output (MIMO) backhaul systems equipped with uniform planar arrays (UPAs) of dual-polarization antennas at both the transmit and receive…

Information Theory · Computer Science 2022-06-28 Sucheol Kim , Junil Choi , Jiho Song

The requirement of high data-rate in the fifth generation wireless systems (5G) calls for the ultimate utilization of the wide bandwidth in the mmWave frequency band. Researchers seeking to compensate for mmWave's high path loss and to…

Signal Processing · Electrical Eng. & Systems 2018-01-30 Yae Jee Cho , Gee-Yong Suk , Byoungnam Kim , Dong Ku Kim , Chan-Byoung Chae

We present a beamforming algorithm for multiuser wideband millimeter wave (mmWave) communication systems where one access point uses hybrid analog/digital beamforming while multiple user stations have phased-arrays with a single RF chain.…

Signal Processing · Electrical Eng. & Systems 2019-05-13 Carlos A. Viteri-Mera , Fernando L. Teixeira

Millimeter wave (mmWave) signals experience orders-of-magnitude more pathloss than the microwave signals currently used in most wireless applications. MmWave systems must therefore leverage large antenna arrays, made possible by the…

Information Theory · Computer Science 2016-11-18 Omar El Ayach , Sridhar Rajagopal , Shadi Abu-Surra , Zhouyue Pi , Robert W. Heath

This letter investigates the hybrid analog and digital beamforming (HBF) design for multiuser millimeter wave (mmWave) communication systems based on the minimum mean square error (MMSE) criterion. Using the alternating minimization method,…

Information Theory · Computer Science 2019-04-19 Jiaqi Cong , Tian Lin , Yu Zhu

This paper studies energy-efficient hybrid beamforming architectures and its algorithm design in millimeter-wave communication systems, aiming to address the challenges faced by existing hybrid beamforming due to low hardware flexibility…

Signal Processing · Electrical Eng. & Systems 2025-01-06 Hongpu Zhang , Yulu Guo , Liuxun Xue , Xingchen Liu , Shu Sun , Ruifeng Gao , Xianghao Yu , Meixia Tao

This paper designs a novel hybrid (a mixture of analog and digital) beamforming and examines the relation between the hybrid and digital beamformings for downlink multiuser massive multiple input multiple output (MIMO) systems. We assume…

Optimization and Control · Mathematics 2014-07-04 Tadilo Endeshaw Bogale , Long Bao Le
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