Results 41 to 50 of about 214 (167)

Advanced channel coding schemes for B5G/6G networks: State‐of‐the‐art analysis, research challenges and future directions

open access: yesInternational Journal of Communication Systems, Volume 37, Issue 13, 10 September 2024.
This paper undertakes a review and analysis of advanced channel coding techniques with the aim of their scalability towards B5G/6G networks scenario. A comparative study is presented for channel coding candidates of futuristic networks. Concatenated and derived codes of convolutional, polar, LDPC, Rateless, and Space‐time coding schemes are reviewed ...
Abhilasha Gautam   +2 more
wiley   +1 more source

Repeat-punctured turbo trellis-coded modulation [PDF]

open access: yesIEEE Africon '11, 2011
In this paper repeat-punctured turbo trellis-coded modulation (RPTTCM) is proposed. In RPTTCM, the effect of repeat-puncture is investigated on a TTCM system, repetition of the information bits increases the interleaver size, followed by an appropriate puncturing scheme to maintain the respective code rate.
Rinel Bhownath, Hongjun Xu 0001
openaire   +1 more source

Mapping Rearrangement for Parallel Concatenated Trellis Coded Modulation

open access: yesEURASIP Journal on Wireless Communications and Networking, 2008
Mapping rearrangement (MaRe) for the hybrid ARQ (HARQ) based on the parallel concatenated trellis coded modulation (PCTCM) is analyzed. We demonstrate that the performance of the PCTCM receiver is intrinsically limited by the MaRe design and we propose a
Benjillali Mustapha, Szczecinski Leszek
doaj  

Coding techniques for diversity enhancement of dense wavelength division multiplexing MIMO‐FSO fault protection protocols systems over atmospheric turbulence channels

open access: yesIET Optoelectronics, Volume 18, Issue 1-2, Page 11-31, February-April 2024.
An enhanced transmission is presented in a multiple‐input‐multiple‐output (MIMO) dense‐wavelength division multiplexed (DWDM) free‐space‐optical (FSO) communication link using diversity coding techniques under the effect of turbulent weather phenomenon.
Ebrahim E. Elsayed   +7 more
wiley   +1 more source

Punctured Trellis-Coded Modulation

open access: yesCoRR, 2013
5 pages, 10 figures, submitted to IEEE International Symposium on Information Theory 2013 (ISIT)
Fabian Schuh   +2 more
openaire   +3 more sources

SPACE TIME CODING FOR TRELLIS CODED MODULATION IN ADDITIVE WHITE GAUSSIAN CHANNELS

open access: yesElectrica, 2003
In this study, Trellis Coded Modulation (TCM) technique is combined with Space Time Codes (STC) and error performance is investigated in Additive White Gaussian (AWGN) channels. For this purpose a different receiver structure is proposed and mathematical
Ömer ERKAN   +2 more
doaj   +2 more sources

Nonbinary LDPC-Coded Modulation for High-Speed Optical Fiber Communication Without Bandwidth Expansion

open access: yesIEEE Photonics Journal, 2012
We propose a scheme that can attain the same transmission bit rate as the corresponding conventional polarization-division-multiplexed (PDM) quadrature amplitude modulation (QAM) scheme while occupying lower bandwidth and, hence, achieving a higher ...
Murat Arabaci   +3 more
doaj   +1 more source

Hyperspectral and Photodiode Retrievals of Nighttime LED‐Induced Chlorophyll Fluorescence (LEDIF) for Tracking Photosynthetic Phenology in a Vineyard

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 129, Issue 1, January 2024.
Abstract The magnitude of chlorophyll fluorescence emission represents both chlorophyll content and energy quenching processes enabling its application to serve as a proxy of photosynthetic activity. Thus, there is interest in advancing methods for canopy‐scale monitoring of chlorophyll fluorescence.
Christopher Y. S. Wong   +6 more
wiley   +1 more source

The Influences of Rootstock on the Performance of Pinot Noir (Vitis vinifera L.): Phenological Progress, Physiological Performance, and Petiole Nutrient Status

open access: yesAustralian Journal of Grape and Wine Research, Volume 2024, Issue 1, 2024.
Background and Aims. Rootstocks are widely utilised in viticulture industry to prevent the infestation of phylloxera, but they may affect the growth and performance of the scion. This project investigated the impacts of 14 different rootstocks on the phenological, physiological, and nutritional performance of the scion using Vitis vinifera L. cv. Pinot
Yipeng Chen   +8 more
wiley   +1 more source

Exploring Interactions Between Vineyard Performance, Grape and Wine Composition and Subregional Boundaries—The Terroir of Barossa Shiraz

open access: yesAustralian Journal of Grape and Wine Research, Volume 2024, Issue 1, 2024.
Background and Aims: Viticulturists and winemakers have a considerable interest in understanding the influence of climate, soil, viticultural and winemaking practices on wine sensory outcomes—that is, understanding the terroir concept, which is important for regionality and claims of product distinctiveness. In this investigation, an empirical study of
Leigh M. Schmidtke   +10 more
wiley   +1 more source

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