Results 121 to 130 of about 1,543 (216)

Performance Analysis of OTFS Framework Over Wideband Time-Varying Channels

open access: yesIEEE Open Journal of the Communications Society
Orthogonal Time Frequency Space (OTFS) modulation has garnered significant attention for its robustness in high-mobility communication scenarios. Existing research predominantly focuses on narrowband time-varying channels, where Doppler effects manifest ...
Ziqiang Gao   +8 more
doaj   +1 more source

Integration of Optically Generated Impulse Radio UWB Signals into Baseband WDM-PON [PDF]

open access: yes, 2011
Dittmann, Lars   +3 more
core   +1 more source

Cooperative transmission of UAV swarm using orthogonal time–frequency space modulation

open access: yesICT Express
Unmanned aerial vehicles (UAVs) emerge as versatile aerial nodes capable of dynamically filling coverage gaps and enabling mission-critical communication based on their mobile nature.
Usman Iqbal   +4 more
doaj   +1 more source

Modulation and Detection for High Doppler Channels: An Overview on OTFS Modulation

open access: yes, 2023
Directed Air Data ...
Chu, Thi My Chinh   +1 more
openaire   +1 more source

One‐Step and Universal Strategy for the Synthesis of Hypermodified Uracil Phosphoramidites acp3U and cmnm5U

open access: yesChemistry – A European Journal, Volume 32, Issue 16, 25 April 2026.
One‐step, highly efficient, and scalable synthesis of acp3U phosphoramidite is described, as well as a new alternative synthesis of cmnm5U phosphoramidite from a highly versatile intermediate. Latter could be scaled‐up, split, and aliquots turned simultaneously into cmnm5U, nm5U, and mnm5U.
Ewa Mejdr   +3 more
wiley   +1 more source

Autoencoder-Based Enhanced Joint Delay-Doppler Index Modulation for OTFS Modulation

open access: yes2024 32nd Signal Processing and Communications Applications Conference (SIU)
Orthogonal time frequency space (OTFS) provides highly effective performance in channels that exhibit both time and frequency variability. OTFS can fully leverage channel diversity by multiplexing data symbols on the whole delay-Doppler domain. However, improving the reliability of OTFS systems is essential to meet the rigid requirements of next ...
Yusuf Islam Tek, Ertugrul Basar
openaire   +2 more sources

Variable Delay With Directly-Modulated R-SOA and Optical Filters for Adaptive Antenna Radio-Fiber Access [PDF]

open access: yes, 2009
Cerutti, Isabella   +6 more
core   +1 more source

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