Results 41 to 50 of about 128,917 (278)

Level Crossing Rate and Average Fade Duration of the Multihop Rayleigh Fading Channel

open access: yes, 2008
We present a novel analytical framework for the evaluation of important second order statistical parameters, as the level crossing rate (LCR) and the average fade duration (AFD) of the amplify-and-forward multihop Rayleigh fading channel.
Hadzi-Velkov, Zoran   +2 more
core   +1 more source

On the Statistics of Cognitive Radio Capacity in Shadowing and Fast Fading Environments (Journal Version)

open access: yes, 2009
In this paper we consider the capacity of the cognitive radio channel in different fading environments under a low interference regime. First we derive the probability that the low interference regime holds under shadow fading as well as Rayleigh and ...
Hanif, Muhammad Fainan, Smith, Peter J.
core   +1 more source

New Golay decoding method using auto-encoder and OSD

open access: yesICT Express
In this study, we explore the potential of leveraging machine learning techniques, specifically auto-encoders (AE), for the decoding of linear block codes.
Hyun Woo Cho, Young Joon Song
doaj   +1 more source

Performance Analysis of SPSK with Dual Polarized Transmit Antennas over Rayleigh Fading Channel

open access: yesJournal of Telecommunications and Information Technology, 2018
In this paper, the Space Polarization Shift Keying (SPSK) system, which is an extended version of Space Shift Keying (SSK) and includes both space and polarization dimensions with dual polarized antennas, is studied.
Malarvizhi Subramani   +2 more
doaj   +1 more source

A Queueing Characterization of Information Transmission over Block Fading Rayleigh Channels in the Low SNR

open access: yes, 2014
Unlike the AWGN (additive white gaussian noise) channel, fading channels suffer from random channel gains besides the additive Gaussian noise. As a result, the instantaneous channel capacity varies randomly along time, which makes it insufficient to ...
Dong, Yunquan, Fan, Pingyi
core   +2 more sources

Soft-decision COVQ for Rayleigh-fading channels [PDF]

open access: yesIEEE Communications Letters, 1998
A channel-optimized vector quantizer (COVQ) scheme that exploits the channel soft-decision information is proposed. The scheme is designed for stationary memoryless Gaussian and Gauss-Markov sources transmitted over BPSK-modulated Rayleigh-fading channels. It is demonstrated that substantial coding gains of 2-3 dB in channel signal-to-noise ratio (SNR)
Fady Alajaji, Nam C. Phamdo
openaire   +1 more source

Capacity analysis over fractional order Rayleigh fading channel under additive white generalized Gaussian noise

open access: yesIET Communications
This study presents an innovative fractional order Rayleigh fading model that can be used for channel capacity estimation in the presence of additive white generalized Gaussian noise.
Mehran Kakavand   +2 more
doaj   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Two new sum-of-sinusoids-based methods for the efficient generation of multiple uncorrelated rayleigh fading waveforms [PDF]

open access: yes, 2009
This paper deals with the design of a set of multiple uncorrelated Rayleigh fading waveforms. The Rayleigh fading waveforms are mutually uncorrelated, but each waveform is correlated in time.
Hogstad, Bjørn Olav   +2 more
core   +2 more sources

Flexible Dielectric Acoustic Resonator Patch for Tissue Regeneration

open access: yesAdvanced Materials, EarlyView.
A flexible dielectric acoustic resonator patch enables MHz‐range ultrasound generation through resonance amplification without using piezoelectric materials. Conformal integration on a curved substrate allows efficient acoustic delivery to tissue‐mimicking environments.
Donyoung Kang   +7 more
wiley   +1 more source

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