Results 31 to 40 of about 4,441 (227)
An LDPC Decoder Architecture forWireless Sensor Network Applications [PDF]
, 2012 The pervasive use of wireless sensors in a growing spectrum of human activities reinforces the need for devices with low energy dissipation. In this work, coded communication between a couple of wireless sensor devices is considered as a method to reduce
Biroli, Andrea Dario Giancarlo +5 more
core +1 more source
An improved method for counting 6-cycles in low-density parity-check codes [PDF]
Serbian Journal of Electrical Engineering, 2023 Since their rediscovery in the early 1990s, low-density parity-check (LDPC) codes have become the most popular error-correcting codes owing to their excellent performance. An LDPC code is a linear block code that has a sparse parity-check matrix.
Slimani Djamel, Kaddai Abdellah
doaj +1 more source
A High Throughput Implementation of QC-LDPC Codes for 5G NR
IEEE Access, 2019 Quasi-cyclic low-density parity-check (QC-LDPC) codes are the choice for data channels in the fifth generation (5G) new radio (NR). At the transmitter side, code bits from the QC-LDPC encoder are delivered to the rate matcher.
Hao Wu, Huayong Wang
doaj +1 more source
Interleaved Product LDPC Codes [PDF]
IEEE Transactions on Communications, 2012 11 pages, 5 figures, accepted for publication in IEEE Transactions on ...
Marco Baldi +2 more
openaire +2 more sources
160-Gb/s NRZ-DQPSK optical transmission system employing QC-LDPC code
, 2014 A quasi-cyclic low-density parity check (QC-LDPC) code is constructed by an improved stability of the shortest cycle algorithm for 160-Gb/s non-return zero differential quadrature phase shift keying (NRZ-DQPSK) optical transmission system with the fiber ...
Yu, Chongxiu +4 more
core +1 more source
Doped low-density parity-check codes
Digital Communications and NetworksIn this paper, we propose a doping approach to lower the error floor of Low-Density Parity-Check (LDPC) codes. The doping component is a short block code in which the information bits are selected from the coded bits of the dominant trapping sets of the ...
Yong Li +5 more
doaj +1 more source
Quasi-cyclic Generalized LDPC codes with low error floors
, 2008 In this paper, a novel methodology for designing structured generalized LDPC (G-LDPC) codes is presented. The proposed design results in quasi-cyclic G-LDPC codes for which efficient encoding is feasible through shift-register-based circuits.
Ryan, William E. +6 more
core +1 more source
Channel code division multiple access and its multilevel structured LDPC based instantiation
, 2008 In this paper, we introduce and outline the concept of Channel Code Division Multiple Access (CCDMA) using a design example based on the recently proposed Multilevel Structured (MLS) LDPC codes. We succeeded in making the memory requirements of the multi-
Sheng Chen +9 more
core +1 more source
Split-extended LDPC codes for coded cooperation [PDF]
2010 International Symposium On Information Theory & Its Applications, 2010 We propose a new code design that aims to distribute an LDPC code over a relay channel. It is based on a split-and-extend approach, which allows the relay to split the set of bits connected to some parity-check of the LDPC code into two or several subsets. Subsequently, the sums of bits within each subset are used in a repeat-accumulate manner in order
openaire +2 more sources
INCREASING THE WIRELESS SYSTEMS INFORMATION EFFICIENCY USING LDPC CODING
Information and Telecommunication Sciences, 2019 Background. LDPC codes research is performed in the paper. The influence of LDPC codes on channel information efficiency is studied in scope of MCS and the benefit of using LDPC codes is specified in digits as a result of research. Objective. The purpose
Leonid Uryvsky +2 more
doaj +1 more source