Blind Identification of Nonbinary LDPC Codes Using Average LLR of Syndrome a Posteriori Probability

Prevalent adaptive modulation and coding (AMC) techniques can facilitate the flexible strategies subject to the dynamic channel quality. It would be quite intriguing for one to build a blind encoder identification technique without spectrum-efficiency sacrifice for AMC transceivers. In this paper, w...

Celý popis

Uložené v:
Podrobná bibliografia
Vydané v:IEEE communications letters Ročník 17; číslo 7; s. 1301 - 1304
Hlavní autori: Xia, Tian, Wu, Hsiao-Chun
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: New York, NY IEEE 01.07.2013
Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Predmet:
Applied sciences
Blind encoder identification
Coding, codes
Detection, estimation, filtering, equalization, prediction
Encoding
Exact sciences and technology
Frequency modulation
Information, signal and communications theory
log-likelihood ratio
Modulation, demodulation
nonbinary low-density parity-check codes
Parity check codes
Radiocommunications
Receivers
Signal and communications theory
Signal, noise
Telecommunications
Telecommunications and information theory
Transceivers
Transmitters
Transmitters. Receivers
Performance evaluation
log-likelihood ratio
Finite field
Monte Carlo method
Blind encoder identification
Quadrature amplitude modulation
Logarithmic function
Coding circuit
Likelihood ratio
Blind identification
nonbinary low-density parity-check codes
Adaptive coding
Transceiver
Posterior probability
Numerical simulation
Error correcting code
Parity check codes
System identification
Adaptive modulation
Modulation coding
Parity check
ISSN:1089-7798, 1558-2558
On-line prístup:Získať plný text
Tagy: Pridať tag
Žiadne tagy, Buďte prvý, kto otaguje tento záznam!
Popis
Shrnutí:Prevalent adaptive modulation and coding (AMC) techniques can facilitate the flexible strategies subject to the dynamic channel quality. It would be quite intriguing for one to build a blind encoder identification technique without spectrum-efficiency sacrifice for AMC transceivers. In this paper, we make the first-ever attempt to tackle the blind nonbinary low-density parity-check (LDPC) encoder identification given a predefined encoder candidate set over the Galois field GF(q) for q-ary quadrature amplitude modulation (q-QAM) signals. Our proposed method establishes the log-likelihood ratios (LLRs) of syndrome a posteriori probabilities (APPs), which specify the potential correctness of the underlying parity-check relations, and identifies the nonbinary LDPC encoder leading to the maximum average LLR over the candidate set. Monte Carlo simulation results verify the effectiveness of our proposed new scheme.
Bibliografia:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2013.051313.130462