Results 81 to 90 of about 25,641 (336)

Blind Estimation of Interleaver Parameter With a Limited Number of Data

open access: yesIEEE Access, 2020
In non-cooperative contexts, one needs to estimate communication parameters by using collected data without any prior information. Particularly, when collecting only a limited number of data, estimation becomes a more challenging task.
Mingyu Jang   +3 more
doaj   +1 more source

Can Punctured Rate-1/2 Turbo Codes Achieve a Lower Error Floor than their Rate-1/3 Parent Codes?

open access: yes, 2007
In this paper we concentrate on rate-1/3 systematic parallel concatenated convolutional codes and their rate-1/2 punctured child codes. Assuming maximum-likelihood decoding over an additive white Gaussian channel, we demonstrate that a rate-1/2 non ...
Carrasco, R.   +3 more
core   +2 more sources

Recent Advances in Programmable Metasurfaces and Meta‐Devices

open access: yesAdvanced Electronic Materials, EarlyView.
Programmable metasurfaces enable various novel functionalities by dynamically tuning electromagnetic wavefronts. This article provides a comprehensive review of recent advances in microwave and terahertz programmable metasurfaces, covering electrical, thermal, optical, and mechanical control mechanisms.
Linda Shao   +4 more
wiley   +1 more source

Performance of Turbo-Codes with Some Proposed Interleaver Schemes

open access: yesAl-Khawarizmi Engineering Journal, 2006
This paper describes a number of new interleaving strategies based on the golden section. The new interleavers are called golden relative prime interleavers, golden interleavers, and dithered golden interleavers. The latter two approaches involve sorting
Ahmed S. Hadi
doaj  

Bandwidth efficient CCSDS coding standard proposals [PDF]

open access: yes
The basic concatenated coding system for the space telemetry channel consists of a Reed-Solomon (RS) outer code, a symbol interleaver/deinterleaver, and a bandwidth efficient trellis inner code. A block diagram of this configuration is shown.
Costello, Daniel J., Jr.   +2 more
core   +1 more source

Deep Learning‐Assisted Coherent Raman Scattering Microscopy

open access: yesAdvanced Intelligent Discovery, EarlyView.
The analytical capabilities of coherent Raman scattering microscopy are augmented through deep learning integration. This synergistic paradigm improves fundamental performance via denoising, deconvolution, and hyperspectral unmixing. Concurrently, it enhances downstream image analysis including subcellular localization, virtual staining, and clinical ...
Jianlin Liu   +4 more
wiley   +1 more source

A Programmable, Scalable-Throughput Interleaver

open access: yesEURASIP Journal on Wireless Communications and Networking, 2010
The interleaver stages of digital communication standards show a surprisingly large variation in throughput, state sizes, and permutation functions.
E. J. C. Rijshouwer, C. H. van Berkel
doaj   +2 more sources

Pruned Bit-Reversal Permutations: Mathematical Characterization, Fast Algorithms and Architectures [PDF]

open access: yes, 2014
A mathematical characterization of serially-pruned permutations (SPPs) employed in variable-length permuters and their associated fast pruning algorithms and architectures are proposed.
Mohammad M. Mansour, Senior Member
core  

A Turbo Detection and Sphere-Packing-Modulation-Aided Space-Time Coding Scheme

open access: yes, 2007
Arecently proposed space-time block-coding (STBC) signal-construction method that combines orthogonal design with sphere packing (SP), referred to here as STBC-SP, has shown useful performance improvements over Alamouti’s conventional orthogonal design ...
Alamri, O, Hanzo, L, YEAP, B-J.
core   +1 more source

Real‐Time Multicolor Fluorescence Microscopy via Cross‐Channel Acquisition and Deep‐Learning‐Based Inference

open access: yesAdvanced Intelligent Discovery, EarlyView.
Sequential multicolor fluorescence imaging in dynamic microsystems is constrained by acquisition speed and excitation dose. This study introduces a real‐time framework to reconstruct spectrally separated channels from reduced cross‐channel acquisitions (frames containing mixed spectral contributions).
Juan J. Huaroto   +3 more
wiley   +1 more source

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