Search
Now showing items 1-10 of 81
BER improvement using the better than double-jump 2 pulse in OFDM schemes prone to frequency offset
(2019)
Orthogonal frequency division multiplexing (OFDM) is highly sensitive to frequency offset since it induces inter-carrier interference (ICI). Fortunately, the pulse shaping filter method has proven its potential to reduce ...
Finite field metrics applied to M-FSK modulation in VLC systems
(2020)
This paper provides an alternative to digital filter based frequency detection for multi-frequency shift keying modulation (M-FSK) using field programmable gate array (FPGA) architectures, by providing a hamming space ...
Performance analysis of OFDM-Based VLC schemes in NLOS channels
(2020)
In this paper, several Orthogonal frequency division multiplexing (OFDM)-based Visible light Communications (VLC) techniques designed for intensity modulation/direct detection (IM/DD) are evaluated and compared for various ...
Simultaneous sound source localization by proposed cuboids nested microphone array based on subband generalized eigenvalue decomposition
(2020)
Multiple sound source localization is an important application in speech processing. In this paper, a cuboids nested microphone array (CuNMA) is proposed for sound acquisition. Also, the spatial aliasing is eliminated by ...
Neuroevolution-based adaptive antenna array beamforming scheme to improve the V2V communication performance at intersections
(2021)
The opportunistic exchange of information between vehicles can significantly contribute to reducing the occurrence of accidents and mitigating their damages. However, in urban environments, especially at intersection ...
Multilayer extreme learning machine as equalizer in OFDM-based radio-over-fiber systems
(2021)
Mobile/wireless networks aim to support diverse services with numerous and sophisticated requirements, such as energy efficiency, spectral efficiency, negligible latency, robustness against time and frequency selective ...
Empirical path loss distribution for visible light communications in underground mines
(2020)
Visible light communication (VLC) systems allow communication and lighting simultaneously. This advantage presents VLC as an emerging technology to provide reliable communication in harsh environments, such as underground ...
Improved double-jump 2 pulse to compensate frequency offset in MQAM-OFDM systems
(2020)
Orthogonal frequency division multiplexing (OFDM) is severely affected by the frequency offset because of it causes inter-carrier interference (ICI). ICI can be diminished with the assistance of any pulse that complies the ...
Semi-supervised extreme learning machine channel estimator and equalizer for vehicle to vehicle communications
(2021)
Wireless vehicular communications are a promising technology. Most applications related to vehicular communications aim to improve road safety and have special requirements concerning latency and reliability. The traditional ...
Extreme learning machine-based receiver for multi-user massive MIMO systems
(2021)
An extreme learning machine (ELM)-based receiver for multi-user massive MIMO systems is introduced. The proposed ELM combining method, defined in the complex plane, is designed to directly perform MIMO combining processing ...