Browsing Electrical & Electronics Engineering by Title
Now showing items 604-623 of 695
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Simultaneous lightwave information and power transfer in underwater visible light communications
(IEEE, 2019)Visible light communication (VLC) has emerged as a high-capacity connectivity solution for underwater sensor networks. Since water is relatively transparent to blue or green light, visible light lasers or LEDs can be used ... -
Single color networks: OFDM-based visible light broadcasting
(IEEE, 2015)In this study, we investigate the performance of optical orthogonal frequency division multiplexing (O-OFDM) based visible light broadcasting. Although indoor spaces usually have more than one light source, most of the ... -
Single photon avalanche diode (SPAD) VLC system and application to downhole monitoring
(IEEE, 2014)In this paper, it is demonstrated for the first time that the problem of continuous downhole monitoring in the oil and gas industry is effectively addressed by the use of visible light communication (VLC). As a reliable, ... -
Single photon detection with silicon-based avalanche photodiode
(SPIE, 2023)Thanks to the significant advances in quantum technologies, the use of single photon detectors (SPDs) is becoming increasingly common. As a result of the excellent photodetection performance of these detectors, they have ... -
Slim design of LLC resonant converter for OLED TV by using toroidal transformer
(IEEE, 2021)LLC resonant converter is used widely in the application of consumer electronics, battery charging, automotive, etc. due to its popularity and ease of control; however, its large footprint size makes it difficult to use ... -
SLIPT for underwater visible light communications: Performance analysis and optimization
(IEEE, 2021-10)In this paper, we investigate simultaneous lightwave information and power transfer (SLIPT) for underwater visible light communication systems. We consider three SLIPT methods namely time switching (TS), power splitting ... -
SOC estimation for li-Ion batteries using extended kalman filter with PID controlled process noise according to the voltage error
(IEEE, 2019)State of Charge (SOC) estimation is critical for battery powered devices in order to find out the remaining charge level. This process is relatively straightforward when the battery is in the resting state. However, it can ... -
Soft actor-critic-based computation offloading in multiuser MEC-enabled IoT-A lifetime maximization perspective
(IEEE, 2023-10-15)This article studies the network lifetime optimization problem in a multiuser mobile-edge computing (MEC)-enabled Internet of Things (IoT) system comprising an access point (AP), a MEC server, and a set of K mobile devices ... -
A software defined radio based data link design for VHF band wireless sensor networks
(Elsevier, 2018-10)In this paper, we present an overall data link design for a tactical wireless sensor network operating at VHF band considering software defined radio (SDR) approach. An empirical channel modeling for the target environment ... -
Software defined VLC system: implementation and performance evaluation
(IEEE, 2015)This paper presents the implementation of an IEEE standard-based Visible Light Communication (VLC) system using software defined radio (SDR) approach. Based on widely used SDR platform Universal Software Radio Peripheral ... -
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 ... -
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 ... -
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 ... -
Spectrum trading for non-identical channel allocation in cognitive radio networks
(IEEE, 2011)In this paper, we investigate spectrum trading via auction approach for cognitive radio networks. We consider a realistic valuation function in terms of different parameters for secondary users (SUs), and propose an efficient ... -
Spectrum trading for non-identical channel allocation in cognitive radio networks
(IEEE, 2013)In this paper, we investigate spectrum trading via auction approach for exclusive usage spectrum access model in cognitive radio networks. We consider a realistic valuation function which depends on channel capacity, delay ...
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