Results 21 to 30 of about 211 (167)

Golden Space–Time Trellis Coded Modulation [PDF]

open access: yesIEEE Transactions on Information Theory, 2007
In this paper, we present a concatenated coding scheme for a high rate $2\times 2$ multiple-input multiple-output (MIMO) system over slow fading channels. The inner code is the Golden code \cite{Golden05} and the outer code is a trellis code. Set partitioning of the Golden code is designed specifically to increase the minimum determinant.
Yi Hong 0001   +2 more
openaire   +4 more sources

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

Space-Time Turbo Trellis Coded Modulation for Wireless Data Communications

open access: yesEURASIP Journal on Advances in Signal Processing, 2002
This paper presents the design of space-time turbo trellis coded modulation (ST turbo TCM) for improving the bandwidth efficiency and the reliability of future wireless data networks.
Welly Firmanto   +3 more
doaj   +1 more source

Bridging the Energy Balance Gap in Eddy‐Covariance Measurements: Insights From Standardized Network Data

open access: yesGlobal Change Biology, Volume 32, Issue 5, May 2026.
Written Summary: Measuring energy exchanges between land and atmosphere is fundamental to understanding climate, but these measurements are systematically incomplete, with 20%–40% of energy consistently unaccounted for. Analyzing data from 84 sites worldwide, we show that carefully tracking all energy components and applying strict data quality filters
Giacomo Nicolini   +45 more
wiley   +1 more source

M-PSK Cooperative Trellis Codes for Coordinate Interleaved Coded Cooperation

open access: yesEURASIP Journal on Wireless Communications and Networking, 2009
M-PSK cooperative trellis codes are proposed for two-user coordinate interleaved coded cooperation operating over quasistatic Rayleigh fading channels.
Özgür Oruç   +1 more
doaj   +2 more sources

Performance of Antenna Diversity with Turbo Trellis Coded Modulation Over Nakagami Channels

open access: yesElectrica, 2019
In this paper, we will use the Space Time Block codes for antenna diversity, and the performance of Space-Time – Turbo Trellis Coded Modulation (ST-TTCM) is investigated over Nakagami channels.
Onur OSMAN
doaj   +2 more sources

Advancing Dry Electroencephalography With Scalable, Soft, and Transcranial Magnetic Stimulation‐Compatible Ti3C2Tx MXene Electrodes for Research and Clinical‐Grade Applications

open access: yesAdvanced Science, Volume 13, Issue 21, 13 April 2026.
Dry soft Ti3C2Tx MXene electroencephalography (EEG) electrodes provide low impedance (2.1 ± 1.8 kΩ at 10 Hz), long‐term stability, and enable safe simultaneous EEG and transcranial magnetic stimulation (TMS). Across scalp sites, hair types, and recording paradigms, including steady state visual evoked potentials (SSVEP), clinical EEG, and mobile EEG ...
Sneha Shankar   +17 more
wiley   +1 more source

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

open access: yesAdvanced Functional Materials, Volume 36, Issue 13, 12 February 2026.
This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva   +9 more
wiley   +1 more source

Modified SNR Gap Approximation for Resource Allocation in LDPC-Coded Multicarrier Systems

open access: yesIEEE Access, 2020
The signal-to-noise ratio (SNR) gap approximation provides a closed-form expression for the SNR required for a coded modulation system to achieve a given target error performance for a given constellation size. This approximation has been widely used for
Adriaan Suls   +3 more
doaj   +1 more source

Long‐Term Industrial‐Scale Study on Regulated Deficit Irrigation′s Effect on Flavonoid and Volatile Composition in Cabernet Sauvignon (Vitis Vinifera L.) Grapes

open access: yesAustralian Journal of Grape and Wine Research, Volume 2026, Issue 1, 2026.
Background and Aims Climate change and reduced precipitation pose significant challenges for the wine industry, particularly in vulnerable regions, where it is essential to incorporate irrigation management tools. Regulated deficit irrigation (RDI) is a step forward in that direction.
Sebastián Vargas   +3 more
wiley   +1 more source

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