Results 71 to 80 of about 51,738 (210)
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
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
Three‐Dimensional Heterogeneous Bonding for High‐Density and Low‐Noise TMR Sensing Arrays
Advanced Science, Volume 13, Issue 13, 3 March 2026.This study demonstrates a three‐dimensional heterogeneous bonding approach to fabricate compact TMR sensing units with double junction numbers and improved magnetic performance. Optimized Au─Au bonding and angled etching improve device integrity, noise characteristics, and magnetoresistance.
Zi'ang Han +3 more
wiley +1 more source
Linguistic Evidence Suggests that Xiōng‐nú and Huns Spoke the Same Paleo‐Siberian Language
Transactions of the Philological Society, Volume 124, Issue 1, Page 29-52, March 2026.Abstract The Xiōng‐nú were a tribal confederation who dominated Inner Asia from the third century BC to the second century AD. Xiōng‐nú descendants later constituted the ethnic core of the European Huns. It has been argued that the Xiōng‐nú spoke an Iranian, Turkic, Mongolic or Yeniseian language, but the linguistic affiliation of the Xiōng‐nú and the ...
Svenja Bonmann, Simon Fries
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 Functional Materials, Volume 36, Issue 12, 9 February 2026.This study explores the benefits of metasurfaces made from functional materials, highlighting their ability to be adapted and improved for various high‐frequency applications, including communications and sensing. It first demonstrates the potential of these functional material‐based metasurfaces to advance the field of sub‐THz perceptive networks ...
Yat‐Sing To +5 more
wiley +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
Detect-and-forward relaying aided cooperative spatial modulation for wireless networks
, 2013 A novel detect-and-forward (DeF) relaying aided cooperative SM scheme is proposed, which is capable of striking a flexible tradeoff in terms of the achievable bit error ratio (BER), complexity and unequal error protection (UEP).
Dong, Binhong +6 more
core +1 more source
Advanced Optical Materials, Volume 14, Issue 8, 23 February 2026.Quasi‐bound states in the continuum on the Bloch surface wave platform are demonstrated, exhibiting high Q‐factors due to strongly suppressed radiative losses and high sensitivity arising from the large evanescent field inherent to the surface wave. The resonance shows clear shifts after each surface molecular functionalization step, highlighting its ...
Bo‐Wei Lin +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