Results 21 to 30 of about 3,031,472 (250)

Adaptive Probabilistic Shaping Using Polar Codes for FSO Communication

IEEE Photonics Journal, 2022
An adaptive polar coded probabilistic shaping scheme for free-space optical (FSO) communication is proposed and demonstrated to improve transmission performance.
Xiaoyu Liu, Jiafei Fang, Shilin Xiao, Lizhuo Zheng, Weisheng Hu   +4 more
doaj   +1 more source

polar-codes

, 2022
The v1.0.2 maintenance release of polar-codes The polar-codes project is a library and simulation tool for a Forward Error Correcting (FEC) scheme named "Polar Codes".
Lotze, Florian, Demel, Johannes
core   +1 more source

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

ICT 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, Shun Kojima, Takashi Akao, Masato Katsuno, Kazuki Maruta, Chang-Jun Ahn   +5 more
doaj   +1 more source

Polar Research turns 40

, 2022
Among his varied Resistance activities during the Nazi occupation of Norway, Tore Gjelsvik co-edited an underground newspaper called Bulletinen (The Bulletin).
Helle V. Goldman, Goldman, Helle V.
core   +1 more source

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

BMJ 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, Romi Haas, Ljoudmila Busija   +2 more
doaj   +1 more source

Partially Information Coupled Polar Codes

IEEE 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, Lei Yang, Yixuan Xie, Jinhong Yuan   +3 more
doaj   +1 more source

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

Applied 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, Vincenzo Dossena, Giacomo Persico   +2 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

The 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, Ivan Milić, Matthias Rempel, Nariaki V. Nitta, Xudong Sun   +4 more
doaj   +1 more source

Flexible and Low-Complexity Encoding and Decoding of Systematic Polar Codes [PDF]

IEEE Transactions on Communications, 2015
In this paper, we present hardware and software implementations of flexible polar systematic encoders and decoders. The proposed implementations operate on polar codes of any length less than a maximum and of any rate.
Gabi Sarkis, I. Tal, Pascal Giard, A. Vardy, C. Thibeault, W. Gross   +5 more
semanticscholar   +1 more source

On the Error Performance of Systematic Polar Codes

CoRR, 2015
Systematic polar codes are shown to outperform non-systematic polar codes in terms of the bit-error-rate (BER) performance. However theoretically the mechanism behind the better performance of systematic polar codes is not yet clear. In this paper, we set the theoretical framework to analyze the performance of systematic polar codes.
Liping Li, Wenyi Zhang 0001, Yanjun Hu
openaire   +3 more sources