Results 31 to 40 of about 5,912 (174)

Coded Adaptive Linear Precoded Discrete Multitone Over PLC Channel [PDF]

, 2008
Discrete multitone modulation (DMT) systems exploit the capabilities of orthogonal subcarriers to cope efficiently with narrowband interference, high frequency attenuations and multipath fadings with the help of simple equalization filters.
Baudais, Jean-Yves, Crussière, Matthieu, Hélard, Jean-François, Muhammad, Fahad Syed   +3 more
core   +5 more sources

Repeat-punctured turbo trellis-coded modulation [PDF]

IEEE 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

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

A Coded Bit-Loading Linear Precoded Discrete Multitone Solution for Power Line Communication [PDF]

, 2008
Linear precoded discrete multitone modulation (LP-DMT) system has been already proved advantageous with adaptive resource allocation algorithm in a power line communication (PLC) context.
Baudais, Jean-Yves, Crussière, Matthieu, Hélard, Jean-François, Muhammad, Fahad Syed   +3 more
core   +5 more sources

Bandwidth-efficient pilot symbol aided technique for trellis-coded modulation in land mobile satellite fading channels [PDF]

, 1999
A bandwidth-efficient pilot-symbol-aided technique is proposed for use with trellis-coded modulation (TCM). Computer simulation has been used to assess the effects of the technique on the bit error rate (BER) performances of trellis-coded 16-ary ...
Cheung, SW, Ng, MH
core   +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

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

Multiple trellis coded modulation [PDF]

, 1990
A technique for designing trellis codes to minimize bit error performance for a fading channel. The invention provides a criteria which may be used in the design of such codes which is significantly different from that used for average white Gaussian ...
Divsalar, Dariush, Simon, Marvin K.
core   +1 more source

Coding of PPM based modulation techniques to improve the performance of infrared WLAN's [PDF]

, 2000
In this communication we consider the use of PPM based modulation methods, such as the hybrid modulation method called Amplitude and Pulse-Position Modulation (APPM) and Overlapping Pulse-Position Modulation (OPPM), to improve the performance of ...
Alves, Rui, Gameiro, Atilio
core   +1 more source