Results 11 to 20 of about 148,430 (260)
A New Analytical Model for SIM–OFDM Contradicts the Previously Claimed Features
Journal of Communications Software and Systems, 2022 The Subcarrier Index Modulation OFDM (SIM–OFDM) appeared in 2009 promising a –3 dB transmitted power reduction without affecting the system performance.
Ahmed N. Jabbar +2 more
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Bi-LSTM based deep learning method for 5G signal detection and channel estimation
AIMS Electronics and Electrical Engineering, 2021 The advanced neural network methods solve significant signal estimation and channel characterization difficulties in the next-generation 5G wireless communication systems.
D Venkata Ratnam , K Nageswara Rao
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Wavelet-OFDM vs. OFDM: Performance comparison [PDF]
2016 23rd International Conference on Telecommunications (ICT), 2016 Wavelet-OFDM based on the discrete wavelet transform, has received a considerable attention in the scientific community, because of certain promising characteristics. In this paper, we compare the performance of Wavelet-OFDM based on Meyer wavelet, and OFDM in terms of peak-to-average power ratio (PAPR), bit error rate (BER) for different channels and ...
Chafii, Marwa +2 more
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OFDM for Cognitive Radio Systems: Novel Power Allocation and Bit Loading Algorithms [PDF]
International Journal of Electronics and Telecommunications, 2019 A novel method to improve the performance of the frequency band is cognitive radio that was introduced in 1999. Due to a lot of advantages of the OFDM, adaptive OFDM method, this technique is used in cognitive radio (CR) systems, widely. In adaptive OFDM,
Shirin Razmi, Naser Parhizgar
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Finite Radon Transform as Subcarriers Mapping Technique for OFDM System
Journal of Communications Software and Systems, 2022 Radon Transform (RT) becomes a mathematical basis for solving computerized tomography, and finds application in medical imaging and image processing. Finite groups represent digital images; the Finite Radon Transform (FRAT) is then applied.
Khalid G Samarah
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Performance metrics in OFDM wireless networks supporting quasi-random traffic [PDF]
Bulletin of the Polish Academy of Sciences: Technical Sciences, 2020 We consider the downlink of an orthogonal frequency division multiplexing (OFDM) based cell that accommodates calls from different service-classes with different resource requirements.
P. Panagoulias +4 more
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JISA (Jurnal Informatika dan Sains), 2020 In order to enhance the user experience of virtual reality (VR) devices, VR multi-user environments and wireless connections must support as the latest generation of VRdevices.
harry dhika, dicky kurnia putra
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ETRI Journal, 2021 Multi‐carrier waveforms have several advantages over single‐carrier waveforms for radar communication. Employing multi‐carrier complementary phase‐coded (MCPC) waveforms in radar applications has recently attracted significant attention.
Channapatna Gopalkrishna Raghavendra +2 more
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Methods for early recognition of OFDM data [PDF]
Компьютерная оптика, 2020 A technique of early recognition (recovery) of data transmitted using OFDM technology by an incompletely received signal is considered. Theoretically, this approach is able to increase the speed of information transfer, as well as the resistance of the ...
Ruslan Yuzkiv +3 more
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Generalized Regression Neural Network Based Channel Identification and Compensation Using Scattered Pilot [PDF]
Radioengineering, 2021 In the high-speed mobile environment, channel state information (CSI) estimated at the beginning of the packet is quite different at the last part because the actual channel state changes with time.
H. He +4 more
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