Results 21 to 30 of about 50,935 (205)
Rate‐compatible spatially coupled LDPC code ensembles by partial repetition extension
IET Communications, Volume 17, Issue 2, Page 246-252, January 2023., 2023 Abstract Herein, one partial repetition extension method is proposed to construct the rate‐compatible spatially coupled low‐density parity‐check (RC‐SCLDPC) codes. For each position of the base SCLDPC code, a certain proportion of the variable nodes are first selected randomly and then repeated a certain number of times.
Yang Liu +4 more
wiley +1 more source
LDPC Error Floor Improvement [PDF]
Engineering and Technology Journal, 2012 The error-correcting performance of low-density parity check (LDPC) codes, when decoded using practical iterative decoding algorithms, is known to be close to Shannon limits.
Aseel Hameed Majeed
doaj +1 more source
Evaluation of Low Density Parity Check Codes Over Various Channel Types [PDF]
Engineering and Technology Journal, 2011 Low density parity check (LDPC) codes are one of the best error correcting codes in today’s coding world and are known to approach the Shannon limit. As with all other channel coding schemes, LDPC codes add redundancy to the uncoded input data to make it
Mahmood Farhan Mosleh
doaj +1 more source
Protection scheme of subcarrier index in OFDM with index modulation aided by LDPC coding
Xibei Gongye Daxue Xuebao, 2021 The receiver of OFDM with Index Modulation (OFDM-IM) usually adopts a Log Likelihood Ratio (LLR) detection algorithm based on the activation state of subcarriers.
doaj +1 more source
Degenerate Quantum LDPC Codes With Good Finite Length Performance [PDF]
Quantum, 2019 We study the performance of medium-length quantum LDPC (QLDPC) codes in the depolarizing channel. Only degenerate codes with the maximal stabilizer weight much smaller than their minimum distance are considered. It is shown that with the help of OSD-like
Pavel Panteleev, G. Kalachev
semanticscholar +1 more source
Decodable quantum LDPC codes beyond the √n distance barrier using high dimensional expanders [PDF]
SIAM journal on computing (Print), 2020 Constructing quantum LDPC codes with a minimum distance that grows faster than a square root of the length has been a major challenge of the field. With this challenge in mind, we investigate constructions that come from high-dimensional expanders, in ...
Shai Evra, T. Kaufman, Gilles Z'emor
semanticscholar +1 more source
GPU-Based, LDPC Decoding for 5G and Beyond
IEEE Open Journal of Circuits and Systems, 2021 In 5G New Radio (NR), low-density parity-check (LDPC) codes are included as the error correction codes (ECC) for the data channel. While LDPC codes enable a low, near Shannon capacity, bit error rate (BER), they also become a computational bottleneck in ...
Chance Tarver +4 more
semanticscholar +1 more source
LDPC Hardware Acceleration in 5G Open Radio Access Network Platforms
IEEE Access, 2021 The Open Radio Access Network (RAN) concept has been gaining wide acceptance in recent network architectures, including 5G New Radio (NR) network deployments.
E. Papatheofanous +2 more
semanticscholar +1 more source
Efficient Design of Read Voltages and LDPC Codes in NAND Flash Memory Using Density Evolution
IEEE Access, 2023 Low-density parity-check (LDPC) codes play an important role in the reliability enhancement of commercial NAND flash memory. Unfortunately, due to the requirement of the reading speed of NAND flash memory, the LDPC decoder will not obtain precise soft ...
Chatuporn Duangthong +2 more
doaj +1 more source
Analysis and Optimization of a General Linking Matrix for JSCC Scheme Based on Double LDPC Codes
Entropy, 2023 A key component of the joint source-channel coding (JSCC) scheme based on double low-density parity-check (D-LDPC) codes is the introduction of a linking matrix between the source LDPC code and channel LDPC code, by which the decoding information ...
Qiwang Chen +3 more
doaj +1 more source