Results 81 to 90 of about 633,557 (183)

Turbo trellis-coded hierarchical modulation assisted decode-and-forward cooperation

open access: yes
Hierarchical modulation, which is also known as layered modulation, has been widely adopted across the telecommunication industry. Its strict backward compatibility with single-layer modems and its low complexity facilitate the seamless upgrading of ...
Ng, Soon Xin, Hanzo, Lajos, Sun, Hua
core   +1 more source

Improving Broadcast Channel Rate Using Hierarchical Modulation [PDF]

open access: yes, 2012
We investigate the design of a broadcast system where the aim is to maximise the throughput. This task is usually challenging due to the channel variability.
Méric, Hugo   +4 more
core  

Forecasting of the Time-dependent Fluxes of Antiprotons in the AMS-02 Era

open access: yesThe Astrophysical Journal
The spectra of Galactic cosmic rays (GCRs) contain crucial information about their origin and propagation through the interstellar medium. When GCRs reach Earth, they are significantly influenced by the solar wind and the heliospheric magnetic field, a ...
Cheng-Rui Zhu, Kai-Kai Duan
doaj   +1 more source

Gross Chromosomal Rearrangement (GCR).

open access: yes, 2015
1. Data from Myung et al. [46]Gross Chromosomal Rearrangement (GCR).
Yoo Jung Kim (695108)   +5 more
core   +1 more source

GCR flux assessment for the ATHENA X-IFU particle background evaluation

open access: yes, 2019
The main aim of this technical note is to consolidate the absolute level of the Galactic Cosmic Ray (GCR) protons spectrum in L2 and its uncertainty during the ATHENA mission lifetime (2031-2034), being protons the dominant contribution in background ...
MINERVINI, GABRIELE   +2 more
core  

Generalised pre-coding aided spatial modulation [PDF]

open access: yes, 2013
A new Multiple Input Multiple Output (MIMO) transmission scheme termed as Generalised Pre-coding aided Spatial Modulation (GPSM) is proposed, where the key idea is that a particular subset of receive antennas is activated and the activation pattern ...
Yang, Lie-Liang   +2 more
core   +1 more source

Pulse position modulation coding schemes for optical intersatellite links [PDF]

open access: yes, 2007
The rapid and significant development of communications links between satellites has made it possible to use various applications such as relay voice, video, multimedia, etc.
Ghosna, Fadi, Sibley, Martin J.N.
core   +2 more sources

Solar Modulation of AMS-02 Daily Proton and Helium Fluxes with Modified Force-field Approximation Models

open access: yesThe Astrophysical Journal
As galactic cosmic rays (GCRs) propagate through the turbulent plasma environment within the heliosphere, they undergo a process of diffusion, drift, and energy loss, leading to a notable reduction in their flux.
Cheng-Rui Zhu, Mei-Juan Wang
doaj   +1 more source

A Numerical Study of the Effects of a Corotating Interaction Region on Cosmic-Ray Transport. II. Features of Cosmic-Ray Composition and Rigidity

open access: yesThe Astrophysical Journal
We continue the numerical modeling of a corotating interaction region (CIR) and the effects it has on solar-rotational recurrent variations of galactic cosmic rays (GCRs).
Xi Luo   +3 more
doaj   +1 more source

Transmitter Preprocessing Aided Spatial Modulation for Multiple-Input Multiple-Output Systems

open access: yes, 2011
This paper proposes and studies a transmitter preprocessing aided spatial modulation (PSM) scheme, which conveys information jointly by a conventional amplitude-phase modulation (APM) and a preprocessing aided space shift keying (pre-SSK) modulation.
Yang, Lie-Liang
core   +2 more sources

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