Results 81 to 90 of about 76,661 (236)
Variable rate QAM for mobile radio [PDF]
IEEE Transactions on Communications, 1995 Quadrature amplitude modulation (QAM) schemes which vary the number of modulation levels in accordance with the mobile radio fading channel variations are investigated. Important parameters considered are the fading rate and the block size used. We describe how the adaptive QAM modems can be employed and consider their use in a DECT-like TDD packet ...
Webb, WT, Steele, R
openaire +2 more sources
M-QAM transmission over hybrid microwave photonic links at the K-band.
Optics Express, 2019 Two experimental configurations of a hybrid K-band (25 GHz) microwave photonic link (MPL) are investigated for seamless broadband wireless access networks. Experimental configurations consist of optical fiber, free-space optics (FSO) and radio frequency (
D. Nguyen +7 more
semanticscholar +1 more source
An M-QAM Signal Modulation Recognition Algorithm in AWGN Channel [PDF]
Scientific Programming, 2019 Computing the distinct features from input data, before the classification, is a part of complexity to the methods of automatic modulation classification (AMC) which deals with modulation classification and is a pattern recognition problem.
Ahmed K. Ali, E. Erçelebi
semanticscholar +1 more source
Food Science &Nutrition, Volume 14, Issue 2, February 2026.Higher rice bran wax ratios produced firmer, more stable oleogels. Lower wax concentrations resulted in weak structuring and phase separation. Oil‐binding capacity increased noticeably with RBW content. Thermal and textural properties improved in proportion to wax concentration.
Farhang Hameed Awlqadr +5 more
wiley +1 more source
Golden Coded Multiple Beamforming
, 2010 The Golden Code is a full-rate full-diversity space-time code, which achieves maximum coding gain for Multiple-Input Multiple-Output (MIMO) systems with two transmit and two receive antennas.
Ayanoglu, Ender, Li, Boyu
core +1 more source
Aging Cell, Volume 25, Issue 2, February 2026.Young multipotent muscle‐derived stem/progenitor cells (MDSPCs) secrete a unique profile of pro‐angiogenic and immunomodulatory proteins that are diminished with age. Systemic transplantation of young MDSPCs into naturally aged mice activates pathways in neuromuscular tissues, enhancing health and driving molecular, structural, and functional ...
Seth D. Thompson +5 more
wiley +1 more source
Satellite based turbo-coded, blind-equalized 4-QAM and 16-QAM digital video broadcasting [PDF]
IEEE Transactions on Broadcasting, 2000 The pan-European digital satellite video broadcasting (DVB-S) system's performance is characterized and improved with the aid of turbo coding and multi-level modulation. Specifically, various configurations of blind equalizers and convolutional as well as turbo codecs operating at different code rates were investigated.
Lee, C.S., Vlahoyiannatos, S., Hanzo, L.
openaire +2 more sources
Advanced Materials Technologies, Volume 11, Issue 1, 8 January 2026.The feasibility of 3D‐printed optical antennas using commercial, non‐optical materials for Optical Wireless Communications (OWC) is demonstrated. This study combines spectral analysis, anisotropy effects, and telecom‐relevant optical measurements, revealing promising performance and novel insights for low‐cost, customizable photonic components in ...
Mauro Aresti +6 more
wiley +1 more source
Per Coefficient Filter Optimization for Rectangular and Quincunx QAM-FBMC
IEEE AccessQuadrature amplitude modulation based filter-bank multicarrier (QAM-FBMC) is a promising technology for future wireless communication systems. When we compare QAM-FBMC systems with the classical orthogonal frequency division multiplexing (OFDM), QAM-FBMC
Iandra Galdino +3 more
doaj +1 more source
Low-Correlation Sequences Over the QAM Constellation [PDF]
IEEE Transactions on Information Theory, 2008 21 pages, 3 figures.
Anand, M., Kumar, P. Vijay
openaire +3 more sources