Results 41 to 50 of about 67,420 (308)

Improving the performance of BICM-ID and MLC systems with different FEC codes [PDF]

open access: yesAdvances in Radio Science, 2013
In bandwidth limited communication systems, the high data rate transmission with performance close to capacity limits is achieved by applying multilevel modulation schemes in association with powerful forward error correction (FEC) coding, i.e.
T. Arafa, W. Sauer-Greff, R. Urbansky
doaj   +1 more source

Bit-Permuted Coded Modulation for Polar Codes [PDF]

open access: yes2017 IEEE Wireless Communications and Networking Conference Workshops (WCNCW), 2017
We consider the problem of using polar codes with higher order modulation over AWGN channels. Unlike prior work, we focus on using modulation independent polar codes. That is, the polar codes are not re-designed based on the modulation used. Instead, we propose bit-permuted coded modulation (BPCM): a technique for using the multilevel coding (MLC ...
openaire   +2 more sources

A Note on the Dual Codes of Module Skew Codes [PDF]

open access: yes, 2011
In [4], starting from an automorphism θ of a finite field ${\mathbb F}_q$ and a skew polynomial ring $R={\mathbb F}_q[X;\theta]$ , module θ -codes are defined as left R -submodules of R /Rf where f ∈R . In [4] it is conjectured that an Euclidean self-dual module θ -code is a θ -constacyclic code and a proof is given in the special ...
Boucher, Delphine, Ulmer, Félix
openaire   +3 more sources

Permutation Coding with Injections for Modified PAM System [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2020
Arriving at a good combination of coding and modulation schemes that can achieve good error correction constitutes a challenge in digital communication systems.
Opeyemi O. Ogunyanda   +2 more
doaj   +1 more source

EXIT-chart aided near-capacity irregular bit-interleaved coded modulation design [PDF]

open access: yes, 2009
A near-capacity irregular Bit-Interleaved Coded Modulation based Iterative Decoding (Ir-BICM-ID) aided scheme is proposed. The irregular design of the scheme pervades the three basic components of BICM-ID, namely the encoder, the unity-rate precoder and ...
Tee, Ronald Yee Siong   +2 more
core   +1 more source

ERROR PERFORMANCE OF TRELLIS CODED QUANTIZATION/ CONTINUOUS PHASE MODULATION SYSTEMS (TCQ/CPM) ON AWGN CHANNELS

open access: yesElectrica, 2003
In this paper, Trellis Coded Quantization/Continuous Phase Modulation systems have been introduced and error performance analysis has been investigated on AWGN channels.
Niyazi ODABASIOGLU   +2 more
doaj   +2 more sources

Hybrid neural coded modulation: Design and training methods

open access: yesICT Express, 2022
We propose a hybrid coded modulation scheme which composes of inner and outer codes. The outer-code can be any standard binary linear code with efficient soft decoding capability (e.g. low-density parity-check (LDPC) codes).
Sung Hoon Lim   +4 more
doaj   +1 more source

Coded modulation scheme employing turbo codes

open access: yesElectronics Letters, 1995
The authors present a turbo coding scheme for bandwidth-efficient modulation that outperforms turbo coding with Gray mapping by employing Ungerboeck codes as component codes. The scheme can be decoded iteratively and achieves very good bit error rates at low signal to noise ratios after a small number of iterations. 8PSK is used as an example, although
Robertson, P., Wörz, T.
openaire   +3 more sources

Channel Prediction Aided Coded Modulation Assisted Eigen-Beamforming [PDF]

open access: yes, 2007
Eigen-beamforming is capable of providing attractive performance gains in the context of Multiple-Input Multiple-Output (MIMO) systems, provided that accurate Channel State Information (CSI) is available.
Ng, S.X.   +7 more
core   +1 more source

Multinary-Signaling-Based Coded Modulation for Ultrahigh-Speed Optical Transport

open access: yesIEEE Photonics Journal, 2015
A multinary-signaling-based coded-modulation (CM) scheme is proposed, which is suitable for various applications ranging from multi-Tb/s to multi-Pb/s data rates, outperforming conventional CM schemes in terms of both spectral and energy efficiencies ...
Ivan B. Djordjevic, Tao Liu, Ting Wang
doaj   +1 more source

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