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The capacity of non-coherent stationary Gaussian fading channels with memory under a peak-power constraint is studied in the asymptotic weak-signal regime. It is assumed that the fading law is known to both transmitter and receiver but that…

信息论 · 计算机科学 2007-07-13 Amos Lapidoth , Ligong Wang

We consider covert communication, i.e., hiding the presence of communication from an adversary for multiple-input multiple-output (MIMO) additive white Gaussian noise (AWGN) channels. We characterize the maximum covert coding rate under a…

信号处理 · 电气工程与系统科学 2021-01-25 Ahmed Bendary , Amr Abdelaziz , C. Emre Koksal

Despite the common belief that substantial capacity gains can be achieved by using more antennas at the base-station (BS) side in cellular networks, the effect of BS antenna topology on the capacity scaling behavior is little understood. In…

信息论 · 计算机科学 2014-10-07 Zhiyang Liu , Lin Dai

This paper presents a remarkable advance for the understanding of MIMO capacity limits with insufficient RF chains. The capacity is characterized by the maximum mutual information given any vector inputs subject to not only an average power…

信号处理 · 电气工程与系统科学 2019-02-08 Shuaishuai Guo , Haixia Zhang , Mohamed-Slim Alouini

A discrete-time Wiener phase noise channel with an integrate-and-dump multi-sample receiver is studied. An upper bound to the capacity with an average input power constraint is derived, and a high signal-to-noise ratio (SNR) analysis is…

信息论 · 计算机科学 2016-11-17 Luca Barletta , Gerhard Kramer

Time series forecasting has received a lot of attention, with recurrent neural networks (RNNs) being one of the widely used models due to their ability to handle sequential data. Previous studies on RNN time series forecasting, however,…

机器学习 · 计算机科学 2024-04-29 Christopher Salazar , Ashis G. Banerjee

During the last decade, it has been well understood that communication over multiple antennas can increase linearly the multiplexing capacity gain and provide large spectral efficiency improvements. However, the majority of studies in this…

信息论 · 计算机科学 2011-05-31 Symeon Chatzinotas , Bjorn Ottersten

This paper applies a windowed frequency-domain overlapped block filtering approach for the acquisition of direct sequence signals. The windows, as a novel viewpoint, not only allow pulse shaping without a front end pulse shaping filter, but…

信号处理 · 电气工程与系统科学 2017-10-10 Ebrahim Karami , Harri Saarnisaari

Presence of multiple antennas on both sides of a communication channel promises significant improvements in system throughput and power efficiency. In effect, a new class of large multiple-input multiple-output (MIMO) communication systems…

信息论 · 计算机科学 2014-01-28 Maksym A. Girnyk , Mikko Vehkaperä , Lars K. Rasmussen

It has been generally believed that the multiple-input multiple-output (MIMO) channel capacity grows linearly with the size of antenna arrays. In terms of degrees of freedom, linear transmit and receive arrays of length $L$ in a scattering…

信息论 · 计算机科学 2016-11-17 Wooseok Nam , Dongwoon Bai , Jungwon Lee , Inyup Kang

We present an experiment demonstrating entanglement-enhanced classical communication capacity of a quantum channel with correlated noise. The channel is modelled by a fiber optic link exhibiting random birefringence that fluctuates on a…

量子物理 · 物理学 2007-05-23 K. Banaszek , A. Dragan , W. Wasilewski , C. Radzewicz

In this paper, we obtain the scaling laws of the sum-rate capacity of a MIMO X-channel, a 2 independent sender, 2 independent receiver channel with messages from each transmitter to each receiver, at high signal to noise ratios (SNR). The…

信息论 · 计算机科学 2007-07-13 Natasha Devroye , Masoud Sharif

In this paper, we study the contribution of network coding (NC) in improving the multicast capacity of random wireless ad hoc networks when nodes are endowed with multi-packet transmission (MPT) and multi-packet reception (MPR)…

信息论 · 计算机科学 2008-09-23 Zheng Wang , Shirish Karande , Hamid R. Sadjadpour , J. J. Garcia-Luna-Aceves

In this paper, we derive upper and lower bounds as well as a simple closed-form approximation for the capacity of the continuous-time, bandlimited, additive white Gaussian noise channel in a three-dimensional free-space electromagnetic…

信息论 · 计算机科学 2017-02-27 Richard J. Barton

We investigate the maximum coding rate achievable on a two-user broadcast channel for the case where a common message is transmitted with feedback using either fixed-blocklength codes or variable-length codes. For the fixed-blocklength-code…

信息论 · 计算机科学 2018-09-03 Kasper Fløe Trillingsgaard , Wei Yang , Giuseppe Durisi , Petar Popovski

We present nonasymptotic bounds on the maximum coding rate achievable over a Rician block-fading channel for a fixed packet size and a fixed packet error probability. Our bounds, which apply to the scenario where no a priori channel state…

信息论 · 计算机科学 2017-05-24 Johan Östman , Giuseppe Durisi , Erik G. Ström

The paper presents an analysis of the time reversal in multi-path Rayleigh-fading channels with $N$ inputs (transmitters) and $M$ outputs (receivers). The main issues addressed are the condition of statistical stability, the rate of…

量子物理 · 物理学 2007-05-23 Albert Fannjiang

The theoretic capacity of a communication system constituted of several transmitting/receiving elements is determined by the singular values of its transfer matrix. Results based on an independent identically distributed channel model,…

数学物理 · 物理学 2012-09-27 François Bentosela , Eric Soccorsi

The capacity of fading channels under peak and average power constraints in the low-SNR regime is investigated. We show that the capacity scales essentially as ${C \approx A \ \text{SNR} \int_{1- \frac{1}{A}}^1 F^{-1}\left(t\right)dt}$,…

信号处理 · 电气工程与系统科学 2018-11-21 Longguang Li , Lokman Sboui , Zouheir Rezki , Mohamed-Slim Alouini

The capacity region of the 2-user multi-input multi-output (MIMO) Gaussian interference channel (IC) is characterized to within a constant gap that is independent of the channel matrices for the general case of the MIMO IC with an arbitrary…

信息论 · 计算机科学 2015-03-18 Sanjay Karmakar , Mahesh K. Varanasi