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Fluid antennas (FAs) and movable antennas (MAs) have drawn increasing attention in wireless communications recently due to their ability to create favorable channel conditions via local antenna movement within a confined region. In this…

Signal Processing · Electrical Eng. & Systems 2024-08-26 Xin Wei , Weidong Mei , Dong Wang , Boyu Ning , Zhi Chen

A wireless network serving multiple users in the millimeter-wave or the sub-terahertz band by a base station is considered. High-throughput multi-user hybrid-transmit beamforming is conceived by maximizing the minimum rate of the users. For…

Information Theory · Computer Science 2023-10-27 W. Zhu , H. D. Tuan , E. Dutkiewicz , H. V. Poor , L. Hanzo

Consider a two-way communication scenario where two single-antenna nodes, operating under full-duplex mode, exchange information to one another through the aid of a (full-duplex) multi-antenna relay, and there is another single-antenna node…

Information Theory · Computer Science 2016-12-21 Qiang Li , Wing-Kin Ma , Dong Han

Consider a MIMO interference channel whereby each transmitter and receiver are equipped with multiple antennas. The basic problem is to design optimal linear transceivers (or beamformers) that can maximize system throughput. The recent work…

Information Theory · Computer Science 2010-09-20 Meisam Razaviyayn , Maziar Sanjabi , Zhi-Quan Luo

Since radio signals carry both energy and information at the same time, a unified study on simultaneous wireless information and power transfer (SWIPT) has recently drawn a significant attention for achieving wireless powered communication…

Information Theory · Computer Science 2014-07-22 Hyungsik Ju , Rui Zhang

This paper addresses a drawback of massive multiple-input multiple-output Maximum Ratio Transmission beamforming. In some propagation conditions, when the base station serves the same target user equipment for a long period, it reduces the…

Signal Processing · Electrical Eng. & Systems 2022-06-16 Nour Awarkeh , Dinh-Thuy Phan-Huy , Raphael Visoz , Marco Di Renzo

The future of vehicular communication networks relies on mmWave massive multi-input-multi-output antenna arrays for intensive data transfer and massive vehicle access. However, reliable vehicle-to-infrastructure links require exact…

Signal Processing · Electrical Eng. & Systems 2024-03-27 Haotian Zhang , Shijian Gao , Xiang Cheng , Liuqing Yang

Ethernet is being considered as the backbone network protocol for next-generation automotive control networks. In such networks, Controller Area Network (CAN) messages related to automotive control can be sent from a CAN network to other…

Networking and Internet Architecture · Computer Science 2014-09-04 Keigo Kawahara , Yutaka Matsubara , Hiroaki Takada

In this paper, we aim to design highly energy efficient end-to-end communication for millimeter wave multiple-input multiple-output systems. This is done by jointly optimizing the digital-to-analog converter (DAC)/analog-to-digital…

Signal Processing · Electrical Eng. & Systems 2020-03-12 Aryan Kaushik , Evangelos Vlachos , Christos Tsinos , John Thompson , Symeon Chatzinotas

In this paper, we consider queue-aware beamforming control for video streaming applications in multi-antenna interference network. Using heavy traffic approximation technique, we first derive the diffusion limit for the discrete time…

Information Theory · Computer Science 2013-09-24 Fan Zhang , Vincent K. N. Lau

In this paper, a general cognitive radio system consisting of a set of users with different level of spectrum access including two primary transceivers and several types of secondary users is considered. It is assumed that two secondary…

Information Theory · Computer Science 2018-09-10 Mohammad Zaeri-Amirani , Fatemeh Afghah , Jonathan Ashdown

This paper proposes a deep learning approach to the adaptive and sequential beamforming design problem for the initial access phase in a mmWave environment with a single-path channel. For a single-user scenario where the problem is…

Information Theory · Computer Science 2021-05-25 Foad Sohrabi , Zhilin Chen , Wei Yu

In this paper, we consider the problem of joint antenna selection and analog beamformer design in downlink single-group multicast networks. Our objective is to reduce the hardware costs by minimizing the number of required phase shifters at…

Optimization and Control · Mathematics 2018-02-23 Tobias Fischer , Ganapati Hegde , Frederic Matter , Marius Pesavento , Marc E. Pfetsch , Andreas M. Tillmann

In cognitive radio (CR) networks, there are scenarios where the secondary (lower priority) users intend to communicate with each other by opportunistically utilizing the transmit spectrum originally allocated to the existing primary (higher…

Information Theory · Computer Science 2009-11-13 Rui Zhang , Ying Chang Liang

Asynchronous distributed hybrid beamformers (ADBF) are conceived for minimizing the total transmit power subject to signal-to-interference-plus-noise ratio (SINR) constraints at the users. Our design requires only limited information…

Information Theory · Computer Science 2024-02-14 Meesam Jafri , Suraj Srivastava , Sunil Kumar , Aditya K. Jagannatham , Lajos Hanzo

Massive Multiple-Input Multiple-Output systems with beamforming are key components of the 5th and the future 6th generation of networks. However, in some cases, where the BS serves the same user for a long period, and in some propagation…

Signal Processing · Electrical Eng. & Systems 2022-06-15 Nour Awarkeh , Dinh-Thuy Phan-Huy , Marco Di Renzo

A near-field wideband communication system is investigated in which a base station (BS) employs an extra-large scale antenna array (ELAA) to serve multiple users in its near-field region. To facilitate near-field multi-user beamforming and…

Information Theory · Computer Science 2024-09-24 Zhaolin Wang , Xidong Mu , Yuanwei Liu

High speed trains (HST) have gradually become an essential means of transportation, where given our digital world, it is expected that passengers will be connected all the time. More specifically, the on-board passengers require fast mobile…

Signal Processing · Electrical Eng. & Systems 2021-11-30 Yichuan Li , Salman Ghafoor , Mohammed El-Hajjar

In millimeter-wave communications (MMWC), in order to compensate for high propagation attenuation, phased arrays are favored to achieve array gain by beamforming, where transmitting and receiving antenna arrays need to be jointly trained to…

Information Theory · Computer Science 2016-11-15 Zhenyu Xiao , Lin Bai , Jinho Choi

This paper proposes an adaptive multi-mode transmission strategy to improve the spectral efficiency achieved in the multiple-input multiple-output (MIMO) broadcast channel with delayed and quantized channel state information. The adaptive…

Information Theory · Computer Science 2016-11-17 Jun Zhang , Marios Kountouris , Jeffrey G. Andrews , Robert W. Heath