Results 91 to 100 of about 9,106 (209)

Codeword Structure Analysis for LDPC Convolutional Codes

Information, 2015
The codewords of a low-density parity-check (LDPC) convolutional code (LDPC-CC) are characterised into structured and non-structured. The number of the structured codewords is dominated by the size of the polynomial syndrome former matrix
Hua Zhou, Jiao Feng, Peng Li, Jingming Xia   +3 more
doaj   +1 more source

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. Part I showed that a special class of DE-LDPC codes, product accumulate
Jing Li (Tiffany)
doaj   +1 more source

Perbandingan Kinerja LDPC (Low Density Parity Check) Dengan Metode Decoding Log Domain Sum Product Pada Kanal AWGN Dan Multipath Fading [PDF]

, 2011
As an effect of the globalization era, telecomunication technology, especially in wireless comunication system is forced to prepare high data rate with reliable Quality of Services (QOS) with Low Bit Error Rate (BER) and very small power.
HAMKA, HAMKA, Moegiharto, Yoedy
core  

Optimized Irregular Low-Density Parity-Check Codes for Multicarrier Modulations over Frequency-Selective Channels

EURASIP Journal on Advances in Signal Processing, 2004
This paper deals with optimized channel coding for OFDM transmissions (COFDM) over frequency-selective channels using irregular low-density parity-check (LDPC) codes.
Gelle Guillaume, Mannoni Valérian, Declercq David   +2 more
doaj   +1 more source

Hardwarearchitektur für einen universellen LDPC Decoder [PDF]

Advances in Radio Science, 2009
Im vorliegenden Beitrag wird eine universelle Decoderarchitektur für einen Low-Density Parity-Check (LDPC) Code Decoder vorgestellt. Anders als bei den in der Literatur häufig beschriebenen Architekturen für strukturierte Codes ist die hier vorgestellte ...
C. Beuschel, H.-J. Pfleiderer
doaj  

Rateless Protograph LDPC Codes for Quantum Key Distribution

IEEE Transactions on Quantum Engineering
Information reconciliation (IR) is a key step in quantum key distribution (QKD). In recent years, blind reconciliation based on low-density parity-check (LDPC) codes has replaced Cascade as a standard de facto since it guarantees efficient IR without a ...
Alberto Tarable, Rudi Paolo Paganelli, Marco Ferrari   +2 more
doaj   +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

Fbmc System With Low Density Parity Check (Ldpc) Coding For Efficient Communications In 5g

International Journal of Engineering and Advanced Technology, 2019
Channel coding is a complicated subject, but vital in cellular communications, which is used for detection and correction of the bit errors caused by various types of noises, interferences. In 3rd generation and 4th Generation (3G and 4G) cellular communications, Turbo codes are predominantly used and currently 3GPP standardization group considering ...
openaire   +1 more source

Explicit construction of girth-eight QC-LDPC codes and its application in CRT method

Tongxin xuebao, 2012
For arbitrary code lengths of the form PL(P≥3L²/4+L-1),a new family of (4,L)-regular quasi-cyclic (QC) low-density parity-check (LDPC) codes was proposed explicitly with girth ight.Employing the new code as a component code in the ...
Guo-hua ZHANG, Rong SUN, Xin-mei WANG
doaj   +2 more sources