Results 41 to 50 of about 140,441 (346)
IEEE Photonics Journal, 2020 Orthogonal time-frequency-space (OTFS) modulation is a promising two-dimensional (2D) signal technique to tackle high mobility time-varying wireless channels.
Jie Zhong +3 more
doaj +1 more source
Community detection in multiplex networks based on orthogonal nonnegative matrix tri-factorization [PDF]
IEEE Access, vol. 12, pp. 6423-6436, 2024, 2022 Networks are commonly used to model complex systems. The different entities in the system are represented by nodes of the network and their interactions by edges. In most real life systems, the different entities may interact in different ways necessitating the use of multiplex networks where multiple links are used to model the interactions.
arxiv +1 more source
Orthogonal chirp division multiplexing for coherent optical fiber communications [PDF]
, 2016 In this paper, we propose an orthogonal chirp division multiplexing (OCDM) technique for coherent optical communication. OCDM is the principle of orthogonally multiplexing a group of linear chirped waveforms for high-speed data communication, achieving ...
Ouyang, Xing, Zhao, Jian
core +1 more source
Comparison of traffic performance of QPSK and 16-QAM modulation techniques for OFDM system
Journal of Telecommunications and Information Technology, 2005 Orthogonal frequency division multiplexing (OFDM) provides better spectral efficiency than frequency division multiplexing (FDM), while maintaining orthogonal relation between carriers; hence traffic is better carried by OFDM than FDM within the same ...
Imdadul Islam, Siddique Hossain
doaj +1 more source
, 2017 Visible light communication (VLC) is a promising solution to the increasing demands for wireless connectivity. Gallium nitride micro-sized light emitting diodes (micro-LEDs) are strong candidates for VLC due to their high bandwidths.
M. S. Islim +13 more
semanticscholar +1 more source
2 × 20 Gbps - 40 GHz OFDM Ro-FSO transmission with mode division multiplexing [PDF]
Journal of the European Optical Society-Rapid Publications, 2014 Radio-over-Free-Space-Optics (Ro-FSO) is a promising technology for future wireless networks. In this work, we have designed a hybrid orthogonal frequency division multiplexing (OFDM) Ro-FSO system for transmission of two independent channels by mode ...
Amphawan A., Chaudhary S., Chan V.W.S.
doaj +1 more source
Automatika, 2023 High data rates, extremely low power consumption, and minimal end-to-end latency are considered to be mandatory requirements for 5G wireless networks. Rapid improvements in design and performance of 5G physical layer waveforms have become necessary.
S. Selvin Pradeep Kumar +2 more
doaj +1 more source
, 2007 In this contribution, a nonlinear hybrid detection scheme based on a novel soft-information assisted Genetic Algorithm (GA) is proposed for a Turbo Convolutional (TC) coded Space Division Multiplexing (SDM) aided Orthogonal Frequency Division ...
Akhtman, Jos, Hanzo, Lajos, Jiang, Ming
core +1 more source
Review on PAR Reduction Techniques for MIMO-OFDM [PDF]
, 2014 Orthogonal Frequency Division Multiplexing (OFDM) is a multicarrier communication scheme Plays a prominent role in wireless communication technology as multicarrier transmission scheme.
, Hardik Patel, Mr. S. M. Patel
core +2 more sources
International Journal of Satellite Communications and Networking, EarlyView., 2023 The performance limitation in multiple‐input multiple‐output (MIMO) feeder links due to time and phase misalignment of the ground stations is investigated. Time and phase distribution over optical fiber is considered as an approach to achieve the synchronization requirements.
Eriserdi Mollaymeri +2 more
wiley +1 more source