Results 11 to 20 of about 82,997 (235)

An optimized encoding algorithm for systematic polar codes [PDF]

open access: yesEURASIP Journal on Wireless Communications and Networking, 2019
Many different encoding algorithms for systematic polar codes (SPC) have been introduced since SPC was proposed in 2011. However, the number of the computing units of exclusive OR (XOR) has not been optimized yet.
Xiumin Wang   +6 more
doaj   +2 more sources

Modified pilot selection for channel estimation of systematic polar coded MIMO-OFDM

open access: yesICT Express, 2019
This paper proposes a modified pilot selection for channel estimation of systematic polar coded MIMO-OFDM. Polar codes provably achieve the theoretical limit for communication systems and systematic polar codes generate the codeword that has the same ...
Koya Watanabe   +5 more
doaj   +2 more sources

On Systematic Polarization-Adjusted Convolutional (PAC) Codes [PDF]

open access: yesIEEE Communications Letters, 2021
Polarization-adjusted convolutional (PAC) codes were recently proposed and arouse the interest of the channel coding community because they were shown to approach theoretical bounds for the (128,64) code size. In this letter, we propose systematic PAC codes.
Thibaud Tonnellier, Warren J. Gross
openaire   +2 more sources

Staircase codes with non-systematic polar codes

open access: yesCoRR, 2021
In this work we propose an encoding and decoding framework for staircase codes based on non-systematic polar codes as component codes. The staircase structure allows for efficient parallelized decoding, while the polar component codes allow to benefit from the flexible structure and efficient soft-decision decoding algorithms.
Carlo Condo   +3 more
openaire   +2 more sources

Patterns of care for people presenting to Australian general practice with musculoskeletal complaints based on routinely collected data: protocol for an observational cohort study using the Population Level Analysis and Reporting (POLAR) database

open access: yesBMJ Open, 2021
Introduction General practice is integral to the Australian healthcare system. Outcome Health’s POpulation Level Analysis and Reporting (POLAR) database uses de-identified electronic health records to analyse general practice data in Australia.
Alexandra Gorelik   +2 more
doaj   +1 more source

Threshold-Based Fast Successive-Cancellation Decoding of Polar Codes [PDF]

open access: yes, 2020
Fast SC decoding overcomes the latency caused by the serial nature of the SC decoding by identifying new nodes in the upper levels of the SC decoding tree and implementing their fast parallel decoders.
Balatsoukas-Stimming, Alexios   +6 more
core   +2 more sources

Formulation, Validation, and Application of a Novel 3D BEM Tool for Vertical Axis Wind Turbines of General Shape and Size

open access: yesApplied Sciences, 2021
Low order models based on the Blade Element Momentum (BEM) theory exhibit modeling issues in the performance prediction of Vertical Axis Wind Turbines (VAWT) compared to Computational Fluid Dynamics, despite the widespread engineering practice of such ...
Andrea G. Sanvito   +2 more
doaj   +1 more source

Concatenated Polar Codes [PDF]

open access: yes, 2010
Polar codes have attracted much recent attention as the first codes with low computational complexity that provably achieve optimal rate-regions for a large class of information-theoretic problems.
Bakshi, Mayank   +2 more
core   +3 more sources

Partially Information Coupled Polar Codes

open access: yesIEEE Access, 2018
We propose a new class of partially information coupled (PIC) polar codes to improve the transmission efficiency of transport block (TB)-based communication standards.
Xiaowei Wu   +3 more
doaj   +1 more source

Limitations and Biases in the Retrieval of the Polar Magnetic Field. I. The Role of the Magnetic Filling Factor in Milne–Eddington Inversions of Simulated Hinode/SP Data

open access: yesThe Astrophysical Journal, 2023
We study the extent to which Milne–Eddington inversions are able to retrieve and characterize the magnetic landscape of the solar poles from observations by the spectropolarimeter on board Hinode.
Rebecca Centeno   +4 more
doaj   +1 more source

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