Results 11 to 20 of about 169,751 (246)

Multilevel polar-coded modulation [PDF]

open access: yes2013 IEEE International Symposium on Information Theory, 2013
A framework is proposed that allows for a joint description and optimization of both binary polar coding and the multilevel coding (MLC) approach for $2^m$-ary digital pulse-amplitude modulation (PAM). The conceptual equivalence of polar coding and multilevel coding is pointed out in detail. Based on a novel characterization of the channel polarization
Seidl, Mathis   +3 more
openaire   +2 more sources

Index coded PSK modulation [PDF]

open access: yes2016 IEEE Wireless Communications and Networking Conference, 2016
In this paper we consider noisy index coding problem over AWGN channel. We give an algorithm to map the index coded bits to appropriate sized PSK symbols such that for the given index code, in general, the receiver with large amount of side information will gain in probability of error performance compared to the ones with lesser amount, depending upon
M., Anjana A., Rajan, B. Sundar
openaire   +2 more sources

Efficient coding theory of dynamic attentional modulation.

open access: yesPLoS Biology, 2022
Activity of sensory neurons is driven not only by external stimuli but also by feedback signals from higher brain areas. Attention is one particularly important internal signal whose presumed role is to modulate sensory representations such that they ...
Wiktor Młynarski, Gašper Tkačik
doaj   +1 more source

Analog Network-Coded Modulation With Maximum Euclidean Distance: Mapping Criterion and Constellation Design

open access: yesIEEE Access, 2017
Physical-layer network coding holds the great potential of improving the power efficiency and the spectral efficiency for the two-stage transmission scheme. The first stage is the multiple access stage, where two source nodes (SN1 and SN2) simultaneously
Zhijiang Yu   +4 more
doaj   +1 more source

Ternary Trellis Coded Modulation

open access: yesIEEE Access, 2019
Ternary trellis coded modulation (TTCM) is introduced. This combines triangular signal constellations with ternary convolutional codes. The performance of TTCM is presented and compared with binary trellis coded modulation (BTCM) which employs square ...
Mahmoud Abdelaziz, T. Aaron Gulliver
doaj   +1 more source

Orthogonal Space Time Block Coding for Spatial Pulse Position Modulation

open access: yesGuangtongxin yanjiu, 2021
The system performance of Spatial Pulse Position Modulation (SPPM) is poor in turbulent channels. In order to solve this problem, the bit complement orthogonal space time Block Coding for Spatial Pulse Position Modulation (BCOSTBCSPPM) is proposed by ...
Zhong-yang MAO   +5 more
doaj   +1 more source

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

Transmission of control information in 5G broadband telecommunication systems

open access: yesAdaptivni Sistemi Avtomatičnogo Upravlinnâ, 2021
This article discusses the polar code is applied to the transmission of control information in broadband telecommunications systems. Channel coding contains a set of procedures for error detection, error correction, rate matching, bit interleaving and ...
Ю. Бойко   +3 more
doaj   +1 more source

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   +1 more source

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

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