Articles with "protograph" as a keyword



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Spatially-Coupled Protograph for NOMA Optimized by the Genetic Algorithm

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Published in 2019 at "IEEE Access"

DOI: 10.1109/access.2019.2940045

Abstract: In this paper we investigate the codebook design of the non-orthogonal multiple access through the spatially-coupled protograph. The optimization is realized by changing the edge connections in the protograph to maximize the sum rate and… read more here.

Keywords: genetic algorithm; coupled protograph; spatially coupled; protograph noma ... See more keywords
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Design of an Improved M-ary DCSK-aided Protograph-Coded Communication System

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Published in 2023 at "IEEE Access"

DOI: 10.1109/access.2023.3280206

Abstract: Differential chaos shift keying (DCSK) is a promising communication technique in the Internet of Things (IoT) scenario. Among various DCSK schemes, $M$ -ary DCSK schemes suit LDPC code especially well dispense with the channel state… read more here.

Keywords: ary dcsk; inline formula; protograph; tex math ... See more keywords
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Integrated Design of JSCC Scheme Based on Double Protograph LDPC Codes System

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Published in 2019 at "IEEE Communications Letters"

DOI: 10.1109/lcomm.2018.2890243

Abstract: In this letter, an integrated design of joint source-channel coding scheme based on the double protograph low-density parity-check (DP-LDPC) codes is proposed. As degree-2 variable nodes (VNs) structure plays an important role in the performance… read more here.

Keywords: ldpc; ldpc codes; integrated design; scheme based ... See more keywords
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Global Design of Double Protograph LDPC Codes for Joint Source-Channel Coding

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Published in 2023 at "IEEE Communications Letters"

DOI: 10.1109/lcomm.2022.3221769

Abstract: In this letter, a global design of double protograph low-density parity-check (DP-LDPC) codes is proposed for joint source-channel coding (JSCC) system. The maximum number of degree-2 variable nodes (VNs), which is very important for the… read more here.

Keywords: ldpc codes; double protograph; design double; protograph ... See more keywords
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A New Transceiver Design for Protograph LDPC-Coded LACO-OFDM VLC Systems With Deep Learning

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Published in 2023 at "IEEE Communications Letters"

DOI: 10.1109/lcomm.2022.3233628

Abstract: As a spectral-efficient and transmission-reliable technique, channel coded layered asymmetrically clipped optical orthogonal frequency-division multiplexing (LACO-OFDM) has attracted considerable interest in visible light communications. In this letter, we investigate the protograph low-density parity-check (LDPC)-coded LACO-OFDM… read more here.

Keywords: coded laco; laco ofdm; protograph; ofdm vlc ... See more keywords
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Designing Protograph-Based Quasi-Cyclic Spatially Coupled LDPC Codes With Large Girth

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Published in 2020 at "IEEE Transactions on Communications"

DOI: 10.1109/tcomm.2020.3001029

Abstract: Spatially coupled (SC) low-density parity-check (LDPC) codes can achieve capacity approaching performance with low message recovery latency when using sliding window (SW) decoding. An SC-LDPC code constructed from a protograph can be generated by first… read more here.

Keywords: codes large; spatially coupled; quasi cyclic; ldpc codes ... See more keywords
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Optimization of Protograph LDPC Codes via Surrogate Channel for Unequal Power Allocation

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Published in 2023 at "IEEE Transactions on Communications"

DOI: 10.1109/tcomm.2023.3237845

Abstract: This paper investigates the possibilities of optimizing existing protograph low-density parity-check (PLDPC) codes and designing optimal PLDPC codes on both AWGN and Rayleigh channels under binary modulation with unequal power allocation (UPA) for nonuniform sources.… read more here.

Keywords: unequal power; protograph; power; power allocation ... See more keywords
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Irregular-Mapped Protograph LDPC-Coded Modulation: A Bandwidth-Efficient Solution for 6G-Enabled Mobile Networks

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Published in 2023 at "IEEE Transactions on Intelligent Transportation Systems"

DOI: 10.1109/tits.2021.3122994

Abstract: The huge amount of data produced in the 6G networks not only brings new challenges to the reliability and efficiency of mobile devices but also drives rapid development of new storage techniques. With the benefits… read more here.

Keywords: irregular mapped; coded modulation; protograph; mobile networks ... See more keywords
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Design and Optimization of Protograph LDPC-Coded Multipulse PPM Systems Over Poisson Channels

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Published in 2022 at "IEEE Transactions on Vehicular Technology"

DOI: 10.1109/tvt.2022.3179483

Abstract: Combining powerful error-correction codes (ECCs) with multipulse pulse-position modulation (MPPM) has great potential to realize high-throughput and high-reliability transmissions in free-space optical (FSO) communication systems. This paper conducts an insightful investigation on protograph low-density parity-check… read more here.

Keywords: systems poisson; poisson channels; protograph; tex math ... See more keywords