Browsing Faculty of Engineering by Title
Now showing items 2786-2805 of 3117
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Some remarks on the stability and instability properties of solitary waves for the double dispersion equation
(Estonian Academy of Sciences, 2015)In this article we give a review of our recent results on the instability and stability properties of travelling wave solutions of the double dispersion equation utt − uxx + auxxxx − buxxtt = −(|u|p−1u)xx for p > 1, a ≥ b ... -
Sorec: Self-organizing and resource efficient clustered blockchain network
(Elsevier, 2023-09)With the emergence of Industry 4.0, the features of the technologies that are utilized in broad range of areas are obliged to change according to the new necessities. Especially, the network requirements have to be adopted ... -
Sound performance investigation of composite materials for the soundbox of a membrane musical instrument
(International Institute of Acoustics and Vibrations, 2015)The materials used in the manufacture of musical instruments with wooden sound box is obtained from trees in general. This fact creates difficulties due to problems with limited environmental resources. In addition, such ... -
Source behavior discovery for fusion of subjective opinions
(IEEE, 2016)Information is at the center of decision making in many systems and use-cases. In cooperative or hostile environments, agents communicate their subjective opinions about various phenomenon. However, sources of these opinions ... -
Space-time block coded spatial modulation for indoor visible light communications
(IEEE, 2022-02)Visible light communication (VLC) has been recognized as a promising technology for handling the continuously increasing quality of service and connectivity requirements in modern wireless communications, particularly in ... -
Space-track modulation and coding for high density aerial vehicle downlink networks with free space optical and visible light communications
(TÜBİTAK, 2019)Aerial vehicles (AVs) have challenges in terms of realizing low complexity and wide coverage area wireless communications architectures, especially for crowded or high density groups of AVs with state-of-the-art free space ... -
Space–time trellis-coded ofdm systems in frequency-selective mobile fading channels
(IEEE, 2017-06)Space-time trellis code (STTC) techniques provide both coding gain and diversity gain to orthogonal frequency-division multiplexing (OFDM) systems without reducing bandwidth efficiency. However, factors such as residual ... -
Sparse channel estimation and equalization for OFDM-based underwater cooperative systems with amplify-and-forward relaying
(IEEE, 2016-01-01)This paper is concerned with a challenging problem of channel estimation and equalization for amplifyand- forward cooperative relay based orthogonal frequency division multiplexing (OFDM) systems in sparse underwater ... -
Sparse channel estimation for OFDM-based underwater acoustic systems in rician fading with a new OMP-MAP algorithm
(IEEE, 2019-03-15)In this paper, a new channel estimation algorithm is proposed that exploits channel sparsity in the time domain for an orthogonal frequency division multiplexing (OFDM)-based underwater acoustical (UWA) communications ... -
Sparse channel estimation for OFDM-based underwater cooperative systems with amplify-and-forward relaying
(IEEE, 2014)This paper is concerned with a challenging problem of channel estimation for amplify-and-forward cooperative relay based orthogonal frequency division multiplexing (OFDM) systems in the presence of sparse underwater acoustic ... -
A sparse matrix‐vector multiplication method with low preprocessing cost
(Wiley, 2018-11-10)Sparse matrix-vector multiplication (SpMV) is a crucial operation used for solving many engineering and scientific problems. In general, there is no single SpMV method that gives high performance for all sparse matrices. ... -
Spatial power spectrum of natural water turbulence with any average temperature, salinity concentration, and light wavelength
(The Optical Society, 2020-10-01)The power spectrum of water optical turbulence is shown to vary with its average temperature < T > and average salinity concentration < S >, as well as with light wavelength lambda. This study explores such variations for ... -
Special issue in humanitarian operations
(Elsevier, 2016-12) -
Special issue in memory of Nicholas Ambraseys
(Springer Science+Business Media, 2014-02) -
Special issue on micro- and nano-scale radiative transfer
(Elsevier, 2014-01) -
Special Issue on the Second International Workshop on Micro- and Nano-Scale Thermal Radiation
(Elsevier, 2015-06)Micro- and nano-scale thermal radiation has become one of the fastest growing research areas because of advances in nanotechnology and the development of novel materials. The related research and development includes ... -
Special issue on the Third International Workshop on Nano-micro Thermal Radiation (NanoRad’17)
(Elsevier, 2019-11)N/A -
Spectral tuning of near-field radiative heat flux between two thin silicon carbide films
(Institute of Physics, 2010)Spectral distributions of radiative heat flux between two thin silicon carbide films separated by sub-wavelength distances in vacuum are analysed. An analytical expression for the near-field flux between two layers of ... -
Spectrum sensing of correlated subbands with colored noise in cognitive radios
(IEEE, 2012)In this paper, we consider the problem of wideband spectrum sensing by using the correlation among the observation samples in different subbands. The Primary User (PU) signal samples in occupied subbands are assumed to be ...
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