Results 51 to 60 of about 595,487 (209)

A construction of the high-rate regular quasi-cyclic LDPC codes

open access: yesEURASIP Journal on Wireless Communications and Networking, 2019
In this paper, a scheme to construct the high-rate regular quasi-cyclic low-density parity-check (QC-LDPC) codes is developed based on the finite geometry low-density parity-check (LDPC) codes.
Qi Meng   +3 more
doaj   +1 more source

Energy-Efficient Raptor-like LDPC Coding Scheme Design and Implementation for IoT Communication Systems

open access: yesEnergies, 2023
The large number of inexpensive and energy-efficient terminals in IoT systems is one of the emerging elements of the recent landscape of information and communication technologies.
Jakub Hyla, Wojciech Sułek
doaj   +1 more source

VLSI implementation of a multi-mode turbo/LDPC decoder architecture [PDF]

open access: yes, 2013
Flexible and reconfigurable architectures have gained wide popularity in the communications field. In particular, reconfigurable architectures for the physical layer are an attractive solution not only to switch among different coding modes but also to ...
Maurizio Martina   +3 more
core   +1 more source

Advanced channel coding schemes for B5G/6G networks: State‐of‐the‐art analysis, research challenges and future directions

open access: yesInternational Journal of Communication Systems, Volume 37, Issue 13, 10 September 2024.
This paper undertakes a review and analysis of advanced channel coding techniques with the aim of their scalability towards B5G/6G networks scenario. A comparative study is presented for channel coding candidates of futuristic networks. Concatenated and derived codes of convolutional, polar, LDPC, Rateless, and Space‐time coding schemes are reviewed ...
Abhilasha Gautam   +2 more
wiley   +1 more source

Efficient and Scalable FPGA-Oriented Design of QC-LDPC Bit-Flipping Decoders for Post-Quantum Cryptography

open access: yesIEEE Access, 2020
Considering code-based cryptography, quasi-cyclic low-density parity-check (QC-LDPC) codes are foreseen as one of the few solutions to design post-quantum cryptosystems.
Davide Zoni   +2 more
doaj   +1 more source

LDPC Decoder of High Speed Multi-Rate DVB-S2 Based on FPGA

open access: yesXibei Gongye Daxue Xuebao, 2019
A multi-rate LDPC decoder architecture for DVB-S2 codes based on FPGA is proposed. Through elementary transformation on the parity check matrices of DVB-S2 LDPC codes, a new matrix whose left is a QC sub-matrix and right is Transformation of Staircase ...

doaj   +1 more source

Low-Floor Tanner Codes via Hamming-Node or RSCC-Node Doping [PDF]

open access: yes, 2006
We study the design of structured Tanner codes with low error-rate floors on the AWGN channel. The design technique involves the “doping” of standard LDPC (proto-)graphs, by which we mean Hamming or recursive systematic convolutional (RSC) code ...
Ryan, William E.   +5 more
core   +1 more source

Reordered static layered schedule for 5G low‐density parity‐check codes

open access: yesElectronics Letters, Volume 60, Issue 7, April 2024.
A static layered schedule for the 5G low‐density parity‐check codes is proposed here. The proposed static layered schedule provides better error performance and faster convergence speed than state‐of‐the‐art. Abstract The error performance of the 5G low‐density parity‐check codes is significantly impacted by the update order of layers.
Yangcan Zhou, Zhongfeng Wang
wiley   +1 more source

Construction of Rate-Compatible Raptor-Like Quasi-Cyclic LDPC Code With Edge Classification for IDMA Based Random Access

open access: yesIEEE Access, 2019
Recently, rate-compatible raptor-like quasi-cyclic low-density parity-check (RL-QC-LDPC) codes, which are a typical class of multi-edge type LDPC codes with excellent performance and high flexibility, have been adopted in the technical specification of ...
Yushu Zhang   +3 more
doaj   +1 more source

Some variations of Tanner's construction for short length QC‐LDPC codes

open access: yesElectronics Letters, Volume 60, Issue 3, February 2024.
We propose a variation of Tanner's construction for quasi‐cyclic low‐density parity‐check codes in a way that allows us to use NON‐prime lifting sizes by using some arithmetic sequences instead of geometric sequences. We prove two theorems on the values of this lifting sizes so that the resulting code has girth at least 8.
Wonjun Kim   +3 more
wiley   +1 more source

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