Results 11 to 20 of about 1,996 (184)
Distributed QC-LDPC Coded Spatial Modulation for Half-Duplex Wireless Communications [PDF]
Radioengineering, 2022 The bit error rate (BER) performance of spatial modulation (SM) can be further improved by applying quasi-cyclic low-density parity-check (QC-LDPC) codes recommended in 5G to SM.
C. L. Zhao +4 more
doaj
ETRI Journal, 2023 This paper proposed a novel method for constructing quasi-cyclic low-density parity-check (QC-LDPC) codes of medium to high code rates that can be applied in cloud data storage systems, requiring better error correction capabilities.
Vairaperumal Bhuvaneshwari +1 more
doaj +1 more source
Algebra-Assisted Construction of Quasi-Cyclic LDPC Codes for 5G New Radio
IEEE Access, 2018 Quasi-cyclic LDPC (QC-LDPC) codes have been accepted as the standard codes of 5G enhanced mobile broadband data channel. These standard codes are designed to support multiple lifting sizes and possess rate-compatible property, which can help adapt ...
Huaan Li +4 more
doaj +1 more source
A construction for girth‐8 QC‐LDPC codes using Golomb rulers
Electronics Letters, 2022 In this paper, an algebraic construction of regular QC‐LDPC codes by using the modular multiplication table mod P and Golomb rulers are proposed. It is proved that the proposed QC‐LDPC codes based on a Golomb ruler of length L have girth at least 8 if P ...
Inseon Kim, Hong‐Yeop Song
doaj +1 more source
Discrete Dynamics in Nature and Society, 2015 This paper presents four different integer sequences to construct quasi-cyclic low-density parity-check (QC-LDPC) codes with mathematical theory. The paper introduces the procedure of the coding principle and coding.
Yan Zhang, Feng-fan Yang, Weijun Song
doaj +1 more source
Ldpc Code Construction using Randomly Permutated Copies of Parity Check Matrix [PDF]
مجلة جامعة النجاح للأبحاث العلوم الطبيعية, 2018 A construction technique is proposed for low-density parity check (LDPC) codes. It uses a base parity check matrix designed from a ran-dom or constructed construction method as Gallager or Quasi-Cyclic LDPC (QC-LDPC) codes in sequence to get codes with ...
Amr lulu, Ammar Abu-Hudrouss
doaj +1 more source
IEEE Access, 2021 Multitype quasi-cyclic (QC) low-density parity-check (LDPC) codes are a class of protograph LDPC codes lifted cyclically from protographs with multiple edges, represented by two weight and slope matrices.
Farzaneh Abedi, Mohammad Gholami
doaj +1 more source
Construction of Quasi-Cyclic Low Density Parity Check Codes for Magnetic Induction Communication
IEEE Access, 2019 The magnetic induction (MI) communication has been proved to be an effective method in the wireless underground sensor networks (WUSN). MI communication system based on quasi-cyclic low density parity check (QC-LDPC) codes is expected to improve the ...
Hua Xu, Yanjing Sun, Wenjuan Shi
doaj +1 more source
Jointly designed quasi-cyclic LDPC-coded cooperation with diversity combining at receiver
International Journal of Distributed Sensor Networks, 2020 This correspondence proposes a jointly-designed quasi-cyclic (QC) low-density parity-check (LDPC)-coded multi-relay cooperation with a destination node realized by multiple receive antennas.
Muhammad Asif +5 more
doaj +1 more source
Tanner
IEEE Access, 2019 Girth plays an important role in the design of low-density parity-check (LDPC) codes. Motivated by the works on the girth of some classes of Tanner quasi-cyclic (QC) LDPC codes, e.g., Tanner (3, 5), (3, 7), (3, 11), and (5, 7) codes, we, in this paper ...
Hengzhou Xu +4 more
doaj +1 more source