Results 101 to 110 of about 15,682 (213)

Reliability Ratio Based Weighted Bit-Flipping Decoding for LDPC Codes

, 2005
In this contribution, a novel reliability-ratio based weighted bit-flipping(RRWBF) algorithm is proposed for decoding Low Density Parity Check (LDPC) codes.
Hanzo, L., Guo, F.
core   +1 more source

Design of LDPC code for uncorrelated Rayleigh fading channel using modified outage probability

ICT Express
In this paper, we propose a new design metric called modified outage probability (MOP) for protograph-based low-density parity-check (LDPC) codes over the uncorrelated Rayleigh fading channel.
Woong-Shin Kwak, Jae-Won Kim
doaj   +1 more source

5G LDPC Codes as Root LDPC Codes via Diversity Alignment

CoRR
Preprint
Hyuntae Ahn, Inki Kim, Hee-Youl Kwak, Yongjune Kim 0001, Chanki Kim, Sang-Hyo Kim   +5 more
openaire   +3 more sources

Low-Complexity Non-Binary LDPC and Modulation Schemes communicating over MIMO Channels

, 2004
In this contribution, Pearl’s belief propagation (BP) algorithm is invoked for constructing a belief network, which is employed for developing a joint detection aided transmit diversity scheme and a non-binary LDPC decoder constructed over a finite field
Hanzo, L., Guo, F.
core   +1 more source

Multilevel structured low-density parity-check codes for AWGN and Rayleigh channels

, 2010
We propose a novel class of protograph low-density parity-check (LDPC) codes having a combinatorial rather than a random structure, which are termed multilevel-structured (MLS) LDPC codes. It is demonstrated that they posses a strikingly simple structure
Chen, Sheng, Bonello, Nicholas, Hanzo, Lajos   +2 more
core   +1 more source

Tanner (3, 23)-Regular QC-LDPC Codes: Cycle Structure and Girth Distribution

IEEE Access
This paper studies a class of quasi-cyclic LDPC (QC-LDPC) codes, i.e., Tanner (3, 23)-regular QC-LDPC codes of code length $23p$ with $p$ being a prime and $p \equiv 1 (\mathrm {mod} 69)$ .
Qi Wang, Jingping Che, Huaan Li, Zhen Luo, Bo Zhang, Hui Liu   +5 more
doaj   +1 more source

LDPC DropConnect

, 2023
Machine learning is a popular topic that has become a scientific research tool in many fields. Overfitting is a common challenge in machine learning, where the model fits the training data too well and performs poorly on new data. Stochastic regularization is one method used to prevent overfitting, by artificially constraining the model to be simpler ...
openaire   +1 more source

ePec-LDPC HARQ: An LDPC HARQ Scheme with Targeted Retransmission

IEICE Transactions on Communications, 2016
WANG, Yumei, LIANG, Jiawei, WANG, Hao, OKI, Eiji, ZHANG, Lin   +4 more
openaire   +1 more source

RS + LDPC-Staircase Codes for the Erasure Channel: Standards, Usage and Performance [PDF]

, 2013
Application-Level Forward Erasure Correction (AL-FEC) codes are a key element of telecommunication systems. They are used to recover from packet losses when retransmission are not feasible and to optimize the large scale distribution of contents. In this
Detchart, Jonathan, Thiénot, Cédric, Lacan, Jérôme, Cunche, Mathieu, Roca, Vincent   +4 more
core  

Differentially Encoded LDPC Codes—Part II: General Case and Code Optimization

EURASIP Journal on Wireless Communications and Networking, 2008
This two-part series of papers studies the theory and practice of differentially encoded low-density parity-check (DE-LDPC) codes, especially in the context of noncoherent detection.
Li (Tiffany) Jing
doaj