Results 71 to 80 of about 14,247 (230)
A wireless multimedia system [PDF]
The complexity, robustness, image and speech quality as well as packet multiplexing issues of a reconfigurable multi-media mobile communicator are addressed.
Steele, R. +3 more
core
Cover legend: The cover image is based on the article The MICOS Complex Regulates Mitochondrial Structure and Oxidative Stress During Age‐Dependent Structural Deficits in the Kidney by Prasanna Katti et al., https://doi.org/10.1111/acel.70534.
Prasanna Katti +48 more
wiley +1 more source
Upper-Bound Performance of a Wide-Band Adaptive Modem [PDF]
Adaptive modulation is applied in conjunction with a decision-feedback equalizer (DFE) in order to mitigate the effects of the slowly varying wide-band multipath Rayleigh fading channel in a noise-limited environment.
Wong, C.H., Hanzo, L.
core
Adaptively Loaded IM/DD Offset-QAM OFDM Based on Set-Partitioned QAM Formats [PDF]
We propose an adaptive-loading algorithm for SP-QAM formats, and experimentally show that SP-offset-QAM outperforms conventional offset-QAM and conventional SP-QAM, in adaptive-loaded IM/DD OFDM systems, and achieves >40 Gbit/s at 50 km without any guard
Jian Zhao +3 more
core +1 more source
Symbol‐Level GRAND‐Assisted Detection for Polar‐Coded Spatial Modulation in MIMO Systems
This research presents an integrated polar‐coded spatial modulation (PCSM) transceiver scheme for MIMO transmission over Rayleigh fading channels. The proposed architecture employs linear spatial signal processing for antenna and symbol estimation, followed by symbol‐level guessing random additive noise decoding (symbol‐level GRAND)–assisted detection ...
Abhilasha Gautam +2 more
wiley +1 more source
Rake Receiver Detection of Adaptive Modulation Aided CDMA over Frequency Selective Channels [PDF]
A closed form Bit Error Ratio (BER) formula is derived for a fixed-mode Quadrature Amplitude Modulation (QAM) scheme employing Rake receivers and receiver antenna diversity.
Choi, B.J., Hanzo, L.
core
A novel spectrally efficient optical transmission in a passive optical network (PON) with hexagonal quadrature amplitude modulation (QAM)-based adaptive modulated optical (AMO) orthogonal frequency division multiplexing (OFDM) is proposed and ...
Hyoung Joon Park +3 more
doaj +1 more source
ABSTRACT First‐principles calculations with density functional theory are used to study the structural, electronic, and optical properties of Ca3PBrxI3‐x (x = 0, 1, 2, and 3) using both GGA‐PBE functionals with and without the Spin‐orbit coupling effect.
I. K. Gusral Ghosh Apurba +7 more
wiley +1 more source
Dual-Mode Vector-Quantised Low-Rate Cordless Videophone Systems for Indoors and Outdoors Applications [PDF]
Dual-mode reconfigurable wireless videophone transceivers are proposed for noise-, rather than interference-limited indoors and outdoors applications and their video quality, bit rate, robustness, and complexity issues are analyzed. A suite of fixed, but
Streit, J, Hanzo, L
core
Defence traits vary across leaf ages in the thistles (Cardueae)
Read the free Plain Language Summary for this article on the Journal blog. Abstract Plants produce a variety of structural and chemical defences to deter herbivores, which can covary across every scale of biological organization. Along these lines, it has been suggested that young leaves differ from old leaves in their defence strategies, but studies ...
Miranda A. Sinnott‐Armstrong +9 more
wiley +1 more source

