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Molecular Communication via Diffusion (MCvD) is a prominent small-scale technology, which roots from the nature. With solid analytical foundations on channel response and advanced modulation techniques, molecular single-input-single-output…

信息论 · 计算机科学 2023-12-05 Gokberk Yaylali , Bayram Cevdet Akdeniz , Tuna Tugcu , Ali Emre Pusane

This paper investigates the robust design of symbol-level precoding (SLP) for multiuser multiple-input multiple-output (MIMO) downlink transmission with imperfect channel state information (CSI) caused by channel aging. By utilizing the a…

信号处理 · 电气工程与系统科学 2024-02-08 Yafei Wang , Xinping Yi , Hongwei Hou , Wenjin Wang , Shi Jin

This paper presents novel numerical approaches to finding the secrecy capacity of the multiple-input multiple-output (MIMO) wiretap channel subject to multiple linear transmit covariance constraints, including sum power constraint, per…

信息论 · 计算机科学 2021-07-09 Anshu Mukherjee , Björn Ottersten , Le-Nam Tran

The classical Rician Weichselberger channel and the emerging holographic multiple-input multiple-output (MIMO) channel share a common characteristic of non-separable correlation, which captures the interdependence between transmit and…

信息论 · 计算机科学 2024-02-16 Xin Zhang , Shenghui Song , Khaled B. Letaief

This paper considers the massive random access problem in MIMO quasi-static Rayleigh fading channels. Specifically, we derive achievability and converse bounds on the minimum energy-per-bit required for each active user to transmit $J$ bits…

信息论 · 计算机科学 2022-10-24 Junyuan Gao , Yongpeng Wu , Shuo Shao , Wei Yang , H. Vincent Poor

Given a multiple-input multiple-output (MIMO) channel, feedback from the receiver can be used to specify a transmit precoding matrix, which selectively activates the strongest channel modes. Here we analyze the performance of Random Vector…

信息论 · 计算机科学 2010-08-27 Wiroonsak Santipach , Michael L. Honig

The power consumption of high-speed, high-resolution analog to digital converters (ADCs) is a limiting factor in implementing large-bandwidth mm-wave communication systems. A mitigating solution, which has drawn considerable recent…

信号处理 · 电气工程与系统科学 2022-08-10 Farhad Shirani , Hamidreza Aghasi

Minimizing the symbol error in the uplink of multi-user multiple input multiple output systems is important, because the symbol error affects the achieved signal-to-interference-plus-noise ratio (SINR) and thereby the spectral efficiency of…

信号处理 · 电气工程与系统科学 2022-03-25 Gábor Fodor , Sebastian Fodor , Miklós Telek

Multiple-input multiple-output (MIMO) radars transmit a set of sequences that exhibit small cross-correlation sidelobes, to enhance sensing performance by separating them at the matched filter outputs. The waveforms also require small…

信号处理 · 电气工程与系统科学 2021-04-08 Ehsan Raei , Mohammad Alaee-Kerahroodi , Prabhu Babu , M. R. Bhavani Shankar

This paper considers the multi-input multi-output (MIMO) relay channel where multiple antennas are employed by each terminal. Compared to single-input single-output (SISO) relay channels, MIMO relay channels introduce additional degrees of…

信息论 · 计算机科学 2008-05-03 Caleb K. Lo , Sriram Vishwanath , Robert W. Heath

The outage performance of multiple-input multiple-output (MIMO) technique has received intensive attention to meet the stringent requirement of reliable communications for 5G applications, e.g., mission-critical machine-type communication…

信息论 · 计算机科学 2022-09-28 Huan Zhang , Guanghua Yang , Zheng Shi , Shaodan Ma , Hong Wang

In this paper, we investigate the blind channel estimation problem for MIMO systems under Rayleigh fading channel. Conventional MIMO communication techniques require transmitting a considerable amount of training symbols as pilots in each…

信号处理 · 电气工程与系统科学 2021-11-17 Jiancheng Tang , Qianqian Yang , Zhaoyang Zhang

This paper is to design and optimize a non-orthogonal and noncoherent massive multiple-input multiple-output (MIMO) framework towards enabling scalable ultra-reliable low-latency communications (sURLLC) in wireless systems beyond 5G. In…

信号处理 · 电气工程与系统科学 2020-02-19 He Chen , Zheng Dong , Jian-Kang Zhang , Branka Vucetic

The single-letter characterisation of the entanglement-assisted capacity of a quantum channel is one of the seminal results of quantum information theory. In this paper, we consider a modified communication scenario in which the receiver is…

量子物理 · 物理学 2024-09-16 Kaiyuan Ji , Bartosz Regula , Mark M. Wilde

We investigate a general channel estimation problem in the massive multiple-input multiple-output (MIMO) system which employs the hybrid analog/digital precoding structure with limited radio-frequency (RF) chains. By properly designing RF…

信息论 · 计算机科学 2017-12-27 Leyuan Pan , Le Liang , Wei Xu , Xiaodai Dong

We consider the problem of coding for quantum channels with side information that is available ahead of time at the transmitter but not at the receiver. We find a single-letter expression for the entanglement-assisted quantum capacity of…

量子物理 · 物理学 2017-08-14 Frédéric Dupuis

The performance analysis of random vector channels, particularly multiple-input-multiple-output (MIMO) channels, has largely been established in the asymptotic regime of large channel dimensions, due to the analytical intractability of…

信息论 · 计算机科学 2015-01-05 Yuxin Chen , Andrea J. Goldsmith , Yonina C. Eldar

The performance limits of scalar coding for multiple-input single-output channels are revisited in this work. By employing randomized beamforming, Narula et al. demonstrated that the loss of scalar coding is universally bounded by ~ 2.51 dB…

信息论 · 计算机科学 2013-05-14 Elad Domanovitz , Uri Erez

We investigate the advantage of coherent superposition of two different coded channels in quantum metrology. In a continuous variable system, we show that the Heisenberg limit $1/N$ can be beaten by the coherent superposition without the…

量子物理 · 物理学 2021-12-15 Dong Xie , Chunling Xu , An Min Wang

Recent work by Shehadeh and Kschischang provides a simple capacity-achieving scheme for channels with polarization-dependent loss (PDL) under common modeling assumptions via a careful choice of orthogonal-design-based precoding and…

信息论 · 计算机科学 2025-03-18 Mohannad Shehadeh , Frank R. Kschischang