Results 41 to 50 of about 211 (167)

Concatenation of Space-Time Block Codes and Turbo Trellis Coded Modulation (ST-TTCM) Over Rician Fading Channels With Imperfect Phase Reference

Electrica, 2019
In this paper, the performance of Space-Time - Turbo Trellis Coded Modulation (ST-TTCM) is evaluated over Rician fading channels with imperfect phase reference.
Osman N. UCAN
doaj   +2 more sources

A high‐precision timing and frequency synchronization algorithm for multi‐h CPM signals

IET Communications, Volume 18, Issue 17, Page 1049-1061, October 2024.
This paper presents an innovative approach for achieving timing and frequency synchronization for multi‐h continuous phase modulation (CPM) signals. To rectify timing offset and mitigate the adverse effects of noise in received signals, a re‐configurable local filter generation method is integrated into the timing synchronization algorithm ...
Yukai Liu, Rongke Liu, Qizhi Chen, Ling Zhao   +3 more
wiley   +1 more source

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

International 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, Prabhat Thakur, Ghanshyam Singh   +2 more
wiley   +1 more source

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

IET 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, Mohammed R. Hayal, Irfan Nurhidayat, Mohd Asif Shah, Abdelrahman Elfikky, Ayman I. Boghdady, Davron Aslonqulovich Juraev, M. A. Morsy   +7 more
wiley   +1 more source

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

Journal 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, Devin P. McHugh, Nicolas Bambach, Andrew J. McElrone, Maria Mar Alsina, William P. Kustas, Troy S. Magney   +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

Australian 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, Yanan Fei, Alexis Pang, Mark Krstic, Peter Clingeleffer, Kate Howell, Deli Chen, Pangzhen Zhang, Paolo Sabbatini   +8 more
wiley   +1 more source

Mapping Rearrangement for Parallel Concatenated Trellis Coded Modulation

EURASIP 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  

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

Australian 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, Susan E. P. Bastian, Keren Bindon, Marcos Bonada, Paul K. Boss, Robert G. V. Bramley, Lukas Danner, Paul R. Petrie, Lira Souza Gonzaga, Cassandra Collins, Paolo Sabbatini   +10 more
wiley   +1 more source

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

Electrica, 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, Onur OSMAN, Osman Nuri UÇAN   +2 more
doaj   +2 more sources

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

IEEE 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, Ivan B. Djordjevic, Lei Xu, Ting Wang   +3 more
doaj   +1 more source