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Deep generative models of 3D shapes have received a great deal of research interest. Yet, almost all of them generate discrete shape representations, such as voxels, point clouds, and polygon meshes. We present the first 3D generative model…

Computer Vision and Pattern Recognition · Computer Science 2021-08-17 Rundi Wu , Chang Xiao , Changxi Zheng

Motivated by future automotive applications, we study some joint radar target detection and parameter estimation problems where the transmitter, equipped with a mono-static MIMO radar, wishes to detect multiple targets and then estimate…

Signal Processing · Electrical Eng. & Systems 2020-09-21 Lorenzo Gaudio , Mari Kobayashi , Giuseppe Caire , Giulio Colavolpe

We address the challenge of spectral sharing between a statistical multiple-input multiple-output (MIMO) radar and an in-band full-duplex (IBFD) multi-user MIMO (MU-MIMO) communications system operating simultaneously in the same frequency…

Information Theory · Computer Science 2024-03-29 Jiawei Liu , Kumar Vijay Mishra , Mohammad Saquib

We consider a multiuser multiple-input single-output interference channel where the receivers are characterized by both quality-of-service (QoS) and radio-frequency (RF) energy harvesting (EH) constraints. We consider the power splitting…

Information Theory · Computer Science 2014-07-11 Stelios Timotheou , Ioannis Krikidis , Gan Zheng , Björn Ottersten

Massive antenna arrays form physically large apertures with a beam-focusing capability, leading to outstanding wireless power transfer (WPT) efficiency paired with low radiation levels outside the focusing region. However, leveraging these…

Signal Processing · Electrical Eng. & Systems 2026-04-28 Benjamin J. B. Deutschmann , Thomas Wilding , Maximilian Graber , Klaus Witrisal

The classical problem in network coding theory considers communication over multicast networks. Multiple transmitters send independent messages to multiple receivers which decode the same set of messages. In this work, computation over…

Information Theory · Computer Science 2016-02-18 Changho Suh , Naveen Goela , Michael Gastpar

In this paper, we propose a sequential hybrid beamforming design for multi-link transmission over mmwave frequency bands. As a starting point, a baseline data communication link is established via traditional analog beamforming at both the…

Information Theory · Computer Science 2017-05-16 Yaning Zou , Mario Castañeda , Tommy Svensson , Gerhard Fettweis

Recent advances in omni-modal large language models have enabled remarkable progress in joint vision-audio understanding. However, prevailing architectures rely on modality-specific encoders with a \emph{video-coarse, audio-dense} design --…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Detao Bai , Shimin Yao , Weixuan Chen , Chengen Lai , Yuanming Li , Zhiheng Ma , Xihan Wei

The problem of diagonalizing a class of complicated matrices, to be called ultrametric matrices, is investigated. These matrices appear at various stages in the description of disordered systems with many equilibrium phases by the technique…

Condensed Matter · Physics 2009-10-22 T. Temesvari , C De Dominicis , I. Kondor

This paper proposes optimal beam patterns of analog beamforming for SU (Single User) massive MIMO (Multi-Input Multi-Output) transmission systems. For hybrid beamforming in SU massive MIMO systems, there are several design parameters such…

Information Theory · Computer Science 2018-12-17 Maki Arai , Kei Sakaguchi , Kiyomichi Araki

We present the theory for the signal formation in a multi conductor detector with cylindrical geometry and long length. There exists electromagnetic wave propagation along the large dimension of the detector. The system is equivalent to a…

Instrumentation and Detectors · Physics 2014-10-10 Manolis Dris

The millimeter-wave (mm-wave) bands enable very large antenna arrays that can generate narrow beams for beamforming and spatial multiplexing. However, directionality introduces beam misalignment and leads to reduced energy efficiency. Thus,…

Information Theory · Computer Science 2023-01-27 Manishika Rawat , Marco Giordani , Brejesh Lall , Abdelaali Chaoub , Michele Zorzi

We investigate the scattering phenomena in two dimensions produced by a general finite-range nonseparable potential. This situation can appear either in a Cartesian geometry or in a heterostructure with cylindrical symmetry. Increasing the…

Mesoscale and Nanoscale Physics · Physics 2010-09-03 P. N. Racec , E. R. Racec , H. Neidhardt

It is of interest to study a wavelet system with a minimum number of generators. It has been showed by X. Dai, D. R. Larson, and D. M. Speegle in [11] that for any $d\times d$ real-valued expansive matrix M, a homogeneous orthonormal…

Functional Analysis · Mathematics 2010-02-12 Bin Han

Large antenna arrays can be used to generate highly focused beams that support very high data rates and reduced energy consumption. However, optimal beam focusing requires large amount of feedback from the users in order to choose the best…

Information Theory · Computer Science 2015-10-06 Abdoulaye Tall , Zwi Altman , Eitan Altman

The cosmological background of higher order vector modes can be generated by the first order scalar perturbations. We investigate the second order and the third order vector modes systematically. The explicit expressions of two point…

Cosmology and Nongalactic Astrophysics · Physics 2022-07-05 Zhe Chang , Xukun Zhang , Jing-Zhi Zhou

Beamforming is a signal processing technique where an array of antenna elements can be steered to transmit and receive radio signals in a specific direction. The usage of millimeter wave (mmWave) frequencies and multiple input multiple…

Symbolic Computation · Computer Science 2023-10-30 Snehal Bhayani , Praneeth Susarla , S. S. Krishna Chaitanya Bulusu , Olli Silven , Markku Juntti , Janne Heikkila

The multiple-input multiple-output interference channel is considered with perfect channel information at the transmitters and single-user decoding receivers. With all transmissions restricted to single stream beamforming, we consider the…

Information Theory · Computer Science 2023-07-19 Rami Mochaourab , Pan Cao , Eduard Jorswieck

Aerial Image Segmentation is a top-down perspective semantic segmentation and has several challenging characteristics such as strong imbalance in the foreground-background distribution, complex background, intra-class heterogeneity,…

Computer Vision and Pattern Recognition · Computer Science 2023-10-03 Kashu Yamazaki , Taisei Hanyu , Minh Tran , Adrian de Luis , Roy McCann , Haitao Liao , Chase Rainwater , Meredith Adkins , Jackson Cothren , Ngan Le

The Golden Code is a full-rate full-diversity space-time code, which achieves maximum coding gain for Multiple-Input Multiple-Output (MIMO) systems with two transmit and two receive antennas. Since four information symbols taken from an…

Information Theory · Computer Science 2012-08-17 Boyu Li , Ender Ayanoglu