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Coherent ensembles of $N$ qubits present an advantage in quantum phase estimation over separable mixtures, but coherence decay due to classical phase diffusion reduces overall precision. In some contexts, the strength of diffusion may be…

量子物理 · 物理学 2013-07-02 Sergey I. Knysh , Gabriel A. Durkin

The quantum bit error rate is a key quantity in quantum communications. If the quantum channel is the atmosphere, the information is usually encoded in the polarization of a photon. A link budget is required, which takes into account the…

This paper introduces a random modulation technique that is decoupled from the channel matrix, allowing it to be applied to arbitrary norm-bounded and spectrally convergent channel matrices. The proposed random modulation constructs an…

信息论 · 计算机科学 2026-01-01 Lei Liu , Yuhao Chi , Shunqi Huang

In this paper, for the first time real-world channel measurements are used to analyse the performance of spatial modulation (SM), where a full analysis of the average bit error rate performance (ABER) of SM using measured urban correlated…

An orthogonal time sequency multiplexing (OTSM) scheme using practical signaling functions is proposed under strong phase noise (PHN) scenarios. By utilizing the transform relationships between the delay-sequency (DS), time-frequency (TF)…

信息论 · 计算机科学 2024-02-05 Zeping Sui , Hongming Zhang , Hien Quoc Ngo , Michail Matthaiou , Lajos Hanzo

Quantum protocols require access to large-scale entangled quantum states, due to the requirement of channel capacity. As a promising candidate, the high-dimensional orbital angular momentum (OAM) entangled states have been implemented, but…

This paper proposes simple moment based spectrum sensing algorithm for cognitive radio networks in a flat fading channel. It is assumed that the transmitted signal samples are binary (quadrature) phase-shift keying BPSK (QPSK), Mary…

应用统计 · 统计学 2013-11-26 Tadilo Endeshaw Bogale , Luc Vandendorpe

In this paper, we develop a framework to investigate the performances of different hybrid beamforming architectures for massive multiple input multiple output (MIMO) systems impaired by power amplifier (PA) nonlinearities. Indirect learning…

信息论 · 计算机科学 2021-03-01 Murat Babek Salman , Gokhan Muzaffer Guvensen

Recent literature has shown that a learned front end with multi-channel audio input can outperform traditional beam-forming algorithms for automatic speech recognition (ASR). In this paper, we present our study on multi-channel acoustic…

声音 · 计算机科学 2020-02-04 Aparna Khare , Shiva Sundaram , Minhua Wu

We investigate the response to noise, in the form of glassy disorder present in circuit elements, in the success probability of the quantum phase estimation algorithm, a subroutine used to determine the eigenvalue - a phase - corresponding…

量子物理 · 物理学 2022-07-08 Soubhadra Maiti , Kornikar Sen , Ujjwal Sen

We analyze the phase-noise measurement methods in which correlation and averaging is used to reject the background noise of the instrument. All the known methods make use of a mixer, used either as a saturated phase detector or as a linear…

仪器与探测器 · 物理学 2009-01-08 Enrico Rubiola , Rodolphe Boudot

The performance of Neyman-Pearson detection of correlated stochastic signals using noisy observations is investigated via the error exponent for the miss probability with a fixed level. Using the state-space structure of the signal and…

信息论 · 计算机科学 2016-11-17 Youngchul Sung , Lang Tong , H. Vincent Poor

Motivated by a wide-spread use of convex optimization techniques, convexity properties of bit error rate of the maximum likelihood detector operating in the AWGN channel are studied for arbitrary constellations and bit mappings, which may…

信息论 · 计算机科学 2009-12-31 Sergey Loyka , Victoria Kostina , Francois Gagnon

In quantum computing systems the quantum states of qubits can be modified among others by applying light pulses. In order to achieve low computing error rates these pulses have to be precisely shaped in magnitude and phase. In practical…

信号处理 · 电气工程与系统科学 2025-01-09 Frank Obernosterer , Raimund Meyer , Robert Koch , Gerd Kilian , Ewald Hedrich , Christian Kelm

A new achievable rate for bit-metric decoding (BMD) is derived using random coding arguments. The rate expression can be evaluated for any input distribution, and in particular the bit-levels of binary input labels can be stochastically…

信息论 · 计算机科学 2016-05-31 Georg Böcherer

In this letter, we study the reference signal-aided channel estimation concept which is a crucial requirement to address the realistic performance of spatial media-based modulation (SMBM) systems where the radio frequency mirrors are…

信号处理 · 电气工程与系统科学 2020-09-29 Akif Kabacı , Mehmet Başaran , Hakan Ali Çırpan

We study the performance of simple error correcting and error avoiding quantum codes together with their concatenation for correlated noise models. Specifically, we consider two error models: i) a bit-flip (phase-flip) noisy Markovian…

量子物理 · 物理学 2011-04-05 Carlo Cafaro , Stefano Mancini

With the goal of enabling ultrareliable and low-latency wireless communications for industrial internet of things (IIoT), this paper studies the use of energy-based modulations in noncoherent massive single-input multiple-output (SIMO)…

信息论 · 计算机科学 2024-06-19 Marc Vilà-Insa , Aniol Martí , Jaume Riba , Meritxell Lamarca

In most cases, structural health monitoring depends on the determination of the modal parameters of the first few modes of a structure. The data that are used to identify these modes by output-only methods include the structure response…

信号处理 · 电气工程与系统科学 2020-08-25 Gholamreza Jahangiri , Seyed Rasoul Nabavian , Mohammad Reza Davoodi , Bahram Navayi Neya , Seyedamin Mostafavian

The realization of fault-tolerant quantum computers remains a challenging endeavor, forcing state-of-the-art quantum hardware to rely heavily on noise mitigation techniques. Standard quantum error mitigation is typically based on…

量子物理 · 物理学 2026-02-06 Juan F. Martin , Giuseppe Cocco , Javier Fonollosa
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