Results 1 to 10 of about 60,861 (159)

Design of a Labeling Scheme for 32-QAM Delayed Bit-Interleaved Coded Modulation [PDF]

open access: yesSensors, 2020
It is very challenging to design the capacity-approaching labeling schemes for large constellations, such as 32-QAM, in delayed bit-interleaved coded modulation (DBICM).
Zhe Zhang   +3 more
doaj   +2 more sources

Hard-Decision Coded Modulation for High-Throughput Short-Reach Optical Interconnect [PDF]

open access: yesEntropy, 2020
Coded modulation (CM), a combination of forward error correction (FEC) and high order modulation formats, has become a key part of modern optical communication systems.
Bin Chen   +4 more
doaj   +2 more sources

Finite-Blocklength Analysis of Coded Modulation with Retransmission [PDF]

open access: yesEntropy
The rapid developments of 5G and B5G networks have posed higher demands on retransmission in certain scenarios. This article reviews classical finite-length coding performance prediction formulas and proposes rate prediction formulas for coded modulation
Ming Jiang, Yi Wang, Fan Ding, Qiushi Xu
doaj   +2 more sources

A Novel Concatenated Coded Modulation Based on GFDM for Access Optical Networks

open access: yesIEEE Photonics Journal, 2018
In this paper, we proposed a novel concatenated coded modulation composed of adaptive turbo code with trellis-coded modulation (ATTCM) that is based on generalized frequency division multiplex (GFDM) system.
Feng Tian   +6 more
doaj   +3 more sources

Layered HARQ Design for LDPC-Based Multi-Level Coded Modulation [PDF]

open access: yesEntropy
Multi-level coded modulation (MLCM) enhances data transmission by allocating error correction more effectively to bits with higher error probabilities, thus optimizing redundancy and improving performance.
Yuejun Wei   +4 more
doaj   +2 more sources

Polar-Coded Modulation

open access: yesIEEE Transactions on Communications, 2013
A framework is proposed that allows for a joint description and optimization of both binary polar coding and $2^m$-ary digital pulse-amplitude modulation (PAM) schemes such as multilevel coding (MLC) and bit-interleaved coded modulation (BICM). The conceptual equivalence of polar coding and multilevel coding is pointed out in detail.
Andreas Schenk   +2 more
exaly   +3 more sources

Optimized Modulation and Coding for Dual Modulated QR Codes

open access: yesIEEE Transactions on Image Processing, 2022
We present optimized modulation and coding for the recently introduced dual modulated QR (DMQR) codes that extend traditional QR codes to carry additional secondary data in the orientation of elliptical dots that replace black modules in the barcode images.
Irving R. Barron, Gaurav Sharma
openaire   +2 more sources

Adaptive Coded Modulation for OFDM System

open access: yesJournal of Engineering, 2023
This paper studies the adaptive coded modulation for coded OFDM system using punctured convolutional code, channel estimation, equalization and SNR estimation.
Serkout N. Abdullah   +1 more
doaj   +1 more source

Improved Schemes of Differential Spatial Modulation

open access: yesIEEE Access, 2021
Differential spatial modulation (DSM) is able to transmit additional data bits without increasing the number of radio-frequency chains and power consumption and also avoids pilot overhead.
Ruey-Yi Wei, Yi-Wei Tsai, Shih-Lun Chen
doaj   +1 more source

Some new RS-coded orthogonal modulation schemes for future GNSS

open access: yesICT Express, 2021
Considering the availability of the global navigation satellite system (GNSS) signals and the increase in its data rate in the future, this paper proposes some new Reed-Solomon coded (RS-coded) orthogonal modulation schemes using the Hadamard codes, as ...
Hyunwoo Cho   +3 more
doaj   +1 more source

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