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Use of Chaotic Oscillations for Precoding and Synchronization in OFDM
Advances in Electrical and Electronic Engineering, 2022 This paper proposes a novel linear precoding method for Orthogonal Frequency Division Multiplexing (OFDM) based on the employment of the chaotic waveforms generated by the fourth-order chaotic oscillator and orthonormalized by the Gram-Schmidt process ...
Arturs Aboltins +3 more
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A Proposed Channel Estimation Based on Enhanced Sub-carrier Index Modulation and Packet-Discrete Wavelet Transform to Minimize Bit Error Rate [PDF]
Engineering and Technology Journal, 2021 For Orthogonal Frequency Division Multiplexing (OFDM) and other communication systems, many estimating approaches have been developed to estimate the channel state information and lower the Bit Error Rate (BER).
Ansam Jabbar
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Wavelet-OFDM vs. OFDM: Performance comparison
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 ...
Marwa Chafii +2 more
openaire +3 more sources
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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Research of OFDM communication algorithm of low-voltage power line in coal mine
Gong-kuang zidonghua, 2014 In view of problem that traditional OFDM algorithm based on discrete Fourier transform used in underground low-voltage power lines is prone to produce larger ISI and ICI to influence normal receiving of signal, an OFDM communication algorithm based on ...
WEI Shaoliang +4 more
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OFDM Channel Estimation Along with Denoising Approach under Small SNR Environment using SSA
Journal of Communications Software and Systems, 2022 —In this paper, a de-noising approach in conjunction with channel estimation (CE) algorithm for OFDM systems using singular spectrum analysis (SSA) is presented. In the proposed algorithm, the initial CE is computed with the aid of traditional linear
E. Hari Krishna +2 more
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Iterative Receiver Architectures for MIMO-OFDM [PDF]
, 2007 In this paper we propose a turbo-detected multiantenna-multi-carrier receiver scheme. Following the philosophy of the turbo processing, our turbo MIMO-OFDM receiver comprises a succession of detection modules, namely the channel estimator, the space-time
Jos Akhtman +3 more
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INVESTIGATION OF FADING IN THE COMMUNICATION SYSTEM USING OFDM TECHNOLOGY
Радіоелектронні і комп'ютерні системи, 2018 A new technique exploited for estimating of fading influence in multipath signal propagation environment for communication system using OFDM (Orthogonal frequency-division multiplexing) technology is proposed.
Алексей Андреевич Бреславец +1 more
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ANALYSIS OF SPATIAL-TIME CHARACTERISTICS OF A RADIO LINE WITH MULTIPATH WITHIN 5G TECHNOLOGY
Information and Telecommunication Sciences, 2020 Background. As a result of the reflection of rays from buildings, from the surface of the Earth or from horizontal boundaries between different layers of the atmosphere, multipath effects occur that cause fast fading, which affects the quality of service.
Leonid Uryvsky, Valeriia Solianikova
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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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