Results 11 to 20 of about 434,851 (98)

A novel method for encoding and decoding based on enhanced parity-check-concatenated polar codes

Dianxin kexue, 2021
Polar codes have perfect coding and decoding performance as a kind of error correction code, which have become a standard coding scheme for 5G short code control channel. While the length of polar codes is short, its performance is not good enough.
Yan WANG, Shunlan LIU, Zhenzhen XI, Jianrong BAO   +3 more
doaj   +2 more sources

Quantum repeaters based on concatenated bosonic and discrete-variable quantum codes

npj Quantum Information, 2021
We propose an architecture of quantum-error-correction-based quantum repeaters that combines techniques used in discrete- and continuous-variable quantum information.
Filip Rozpędek, Kyungjoo Noh, Qian Xu, Saikat Guha, Liang Jiang   +4 more
doaj   +1 more source

Reverse Concatenated Coded Modulation for High-Speed Optical Communication

IEEE Photonics Journal, 2010
We propose the reverse concatenated code as a forward error correction (FEC) scheme suitable for beyond 100-Gb/s optical transmission. In this scheme, BCH code is used as inner code and low-density parity-check (LDPC) code as outer code.
Ivan B. Djordjevic, Lei Xu, Ting Wang
doaj   +1 more source

Building a Fault-Tolerant Quantum Computer Using Concatenated Cat Codes

PRX Quantum, 2022
We present a comprehensive architectural analysis for a proposed fault-tolerant quantum computer based on cat codes concatenated with outer quantum error-correcting codes.
Christopher Chamberland, Kyungjoo Noh, Patricio Arrangoiz-Arriola, Earl T. Campbell, Connor T. Hann, Joseph Iverson, Harald Putterman, Thomas C. Bohdanowicz, Steven T. Flammia, Andrew Keller, Gil Refael, John Preskill, Liang Jiang, Amir H. Safavi-Naeini, Oskar Painter, Fernando G.S.L. Brandão   +15 more
doaj   +1 more source

The Road From Classical to Quantum Codes: A Hashing Bound Approaching Design Procedure

IEEE Access, 2015
Powerful quantum error correction codes (QECCs) are required for stabilizing and protecting fragile qubits against the undesirable effects of quantum decoherence. Similar to classical codes, hashing bound approaching QECCs may be designed by exploiting a
Zunaira Babar, Panagiotis Botsinis, Dimitrios Alanis, Soon Xin Ng, Lajos Hanzo   +4 more
doaj   +1 more source

Reduced complexity hard‐ and soft‐input BCH decoding with applications in concatenated codes

IET Circuits, Devices and Systems, 2021
Error correction coding for optical communication and storage requires high rate codes that enable high data throughput and low residual errors. Recently, different concatenated coding schemes were proposed that are based on binary BCH codes with low ...
Jürgen Freudenberger, Daniel Nicolas Bailon, Malek Safieh   +2 more
doaj   +1 more source

Channel Model and Decoder With Memory for DNA Data Storage With Nanopore Sequencing

IEEE Access, 2023
This paper investigates channel coding for DNA data storage, a recent and emerging paradigm in which both substitution errors and synchronization errors (insertions, deletions) are introduced in the stored data.
Belaid Hamoum, Elsa Dupraz
doaj   +1 more source

Concatenation Schemes for Topological Fault-tolerant Quantum Error Correction [PDF]

Quantum 7, 1089 (2023), 2022
We investigate a family of fault-tolerant quantum error correction schemes based on the concatenation of small error detection or error correction codes with the three-dimensional cluster state. We propose fault-tolerant state preparation and decoding schemes that effectively convert every circuit-level error into an erasure error, leveraging the ...
arxiv   +1 more source

Correctable noise of Quantum Error Correcting Codes under adaptive concatenation [PDF]

Phys. Rev. A 77, 010301(R) (2008), 2007
We examine the transformation of noise under a quantum error correcting code (QECC) concatenated repeatedly with itself, by analyzing the effects of a quantum channel after each level of concatenation using recovery operators that are optimally adapted to use error syndrome information from the previous levels of the code. We use the Shannon entropy of
arxiv   +1 more source

Generalized Concatenation for Quantum Codes [PDF]

Proceedings 2009 IEEE International Symposium on Information Theory (ISIT 2009), Seoul, Korea, June/July 2009, pp. 953-957, 2009
We show how good quantum error-correcting codes can be constructed using generalized concatenation. The inner codes are quantum codes, the outer codes can be linear or nonlinear classical codes. Many new good codes are found, including both stabilizer codes as well as so-called nonadditive codes.
arxiv   +1 more source