Results 21 to 30 of about 1,411,285 (285)

Hybrid Reversible Data Hiding in Encrypted Satellite Images Using Fluctuation Modification Extraction and Reed-Solomon Code Embedding

open access: yesIEEE Access, 2020
In conventional hybrid reversible data hiding in encrypted images (RDHEI), the error-free extracted-bit rate condition in recovered images cannot be fully achieved (reversible) as the block size decreases because of the fluctuation function used, which ...
Gunawan Wibisono   +3 more
doaj   +1 more source

Finite-Blocklength Bounds on the Maximum Coding Rate of Rician Fading Channels with Applications to Pilot-Assisted Transmission [PDF]

open access: yes, 2017
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.
Durisi, Giuseppe   +2 more
core   +2 more sources

Adaptive compressive sensing of images using error between blocks

open access: yesInternational Journal of Distributed Sensor Networks, 2018
Block compressive sensing of image results in blocking artifacts and blurs when reconstructing images. To solve this problem, we propose an adaptive block compressive sensing framework using error between blocks.
Ran Li, Xiaomeng Duan, Yongfeng Lv
doaj   +1 more source

Research on mine wireless signal detection method based on dual path network

open access: yesGong-kuang zidonghua, 2023
At present, most of the research on mine wireless signal detection only considers the ideal additive Gaussian white noise channel and Rayleigh fading channel. The signal detection has high bit error rate and complex network structure.
LI Xuhong, LI Tongtong, WANG Anyi
doaj   +1 more source

Degenerate Viterbi decoding [PDF]

open access: yes, 2012
We present a decoding algorithm for quantum convolutional codes that finds the class of degenerate errors with the largest probability conditioned on a given error syndrome. The algorithm runs in time linear with the number of qubits.
Pelchat, Emilie, Poulin, David
core   +1 more source

Measuring of Block Error Rates in High-Speed Digital Networks

open access: yesAdvances in Electrical and Electronic Engineering, 2006
Error characteristics is a decisive factor for the digital networks transmission quality definition. The ITU – TG.826 and G.828 recommendations identify error parameters for high – speed digital networks in relation to G.821 recommendation. The paper describes the relations between individual error parameters and the error rate assuming that theseare ...
Ivaniga, P., Mikuš, L.
openaire   +3 more sources

Minimum BER Receiver Filters with Block Memory for Uplink DS-CDMA Systems

open access: yesEURASIP Journal on Wireless Communications and Networking, 2008
The problem of synchronous multiuser receiver design in the case of direct-sequence single-antenna code division multiple access (DS-CDMA) uplink networks is studied over frequency selective fading channels.
Mérouane Debbah   +1 more
doaj   +2 more sources

DMA controller design based on SHA-1 dual channel improvement algorithm

open access: yesAIP Advances, 2023
In order to make direct memory access (DMA) high-speed transmission while ensuring the security and integrity of data, the traditional Secure Hash Algorithm (SHA) is improved from the algorithm model and hardware architecture level by adopting the ...
Wei Wang, Cong He, Jia Qi Shi
doaj   +1 more source

Simple Rate-1/3 Convolutional and Tail-Biting Quantum Error-Correcting Codes

open access: yes, 2005
Simple rate-1/3 single-error-correcting unrestricted and CSS-type quantum convolutional codes are constructed from classical self-orthogonal $\F_4$-linear and $\F_2$-linear convolutional codes, respectively.
Forney, Jr., G. David, Guha, Saikat
core   +2 more sources

Short Packets over Block-Memoryless Fading Channels: Pilot-Assisted or Noncoherent Transmission? [PDF]

open access: yes, 2017
We present nonasymptotic upper and lower bounds on the maximum coding rate achievable when transmitting short packets over a Rician memoryless block-fading channel for a given requirement on the packet error probability.
Coşkun, Mustafa C.   +4 more
core   +2 more sources

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