Performance Analysis of Iteratively Decoded Variable-Length Space-Time Coded Modulation [PDF]
, 2007 It is demonstrated that iteratively Decoded Variable Length Space Time Coded Modulation (VL-STCM-ID) schemes are capable of simultaneously providing both coding gain as well as multiplexing and diversity gain.
Ng, S.X. +12 more
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Time–Frequency-Analysis-Based Blind Modulation Classification for Multiple-Antenna Systems
Sensors, 2021 Blind modulation classification is an important step in implementing cognitive radio networks. The multiple-input multiple-output (MIMO) technique is widely used in military and civil communication systems.
Weiheng Jiang +5 more
doaj +1 more source
The modulation of implicit magnitude on time estimates. [PDF]
PLoS ONE, 2012 Studies in time and quantity have shown that explicit magnitude (e.g. Arabic numerals, luminance, or size) modulates time estimates with smaller magnitude biasing the judgment of time towards underestimation and larger magnitude towards overestimation ...
Qingxia Ma, Zhen Yang, Zhijie Zhang
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Time-refraction optics with single cycle modulation
Nanophotonics, 2023 We present an experimental study of optical time-refraction caused by time-interfaces as short as a single optical cycle. Specifically, we study the propagation of a probe pulse through a sample undergoing a large refractive index change induced by an ...
Lustig Eran +10 more
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Time-Dependent Odorant Sensitivity Modulation in Insects
Insects, 2022 Insects use olfaction to detect ecologically relevant chemicals in their environment. To maintain useful responses over a variety of stimuli, olfactory receptor neurons are desensitized to prolonged or high concentrations of stimuli.
Hao Guo, Dean P. Smith
doaj +1 more source
Turbo Detection of Precoded Sphere Packing Modulation Using Four Transmit Antennas for Differential Space-Time Spreading [PDF]
, 2008 This paper presents a novel turbo-detected multidimensional Sphere Packing (SP) modulation scheme using four transmit antennas combined with Differentially encoded Space-Time Spreading (DSTS). The DSTS scheme can be readily combined with PSK, QAM as well
Alamri, Osamah +3 more
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Physics-Informed Deep Neural Network for Low Sidelobe Cosecant-Squared Pattern Time-Modulated Antenna Array with Harmonic Suppression [PDF]
Journal of Electromagnetic Engineering and ScienceIn this paper, a physics-informed deep neural network (PIDNN)-based approach with phase-only weighting is proposed for the synthesis of a cosecant-squared radiation pattern time-modulated linear array (TMLA).
Tarek Sallam, Qun Wang, Ahmed M. Attiya
doaj +1 more source
Time-Modulated Patch Antennas With Tunable and Nonreciprocal Polarization Response
IEEE Access, 2022 In this paper, we propose and demonstrate time-modulated patch antennas able to exhibit opposite polarization ellipticity when operated in transmission or reception, effectively leading to nonreciprocal polarization responses. To this purpose, we merge a
James T. S. Do +3 more
doaj +1 more source
Differential space-time modulation schemes for smart antenna aided generalized multicarrier DS-CDMA systems [PDF]
, 2006 —Differential space-time modulation (DSTM) schemes were proposed for detection without any knowledge of the Channel State Information (CSI), which is an attractive feature in the presence of fast fading channels, where accurate channel estimation is a ...
Lie-Liang Yang +5 more
core +2 more sources
Unitary Space-Time Modulation Based on Coherent Codes
Sensors, 2022 This paper analyzes the relationship between pilot symbol-assisted modulation (PSAM) and unitary space-time modulation (USTM). In particular, we present a map that transforms any PSAM into a USTM and vice versa.
Daniel Calabuig
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