Results 21 to 30 of about 62,657 (220)
Robust OFDM timing synchronisation [PDF]
, 2005 A new pre-FFT synchronization method for OFDM is proposed and assessed that gives improved performance in multipath channels. The technique can be used for a range of OFDM signal parameters, and channel environments.
Williams, C +8 more
core +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
Optical distribution of OFDM and impulse-radio UWB in FTTH networks [PDF]
, 2008 Proposal, experimental demonstration and performance comparison of impulse-radio UWB and OFDM UWB distribution in FTTH networks for high-definition audio/video broadcasting is presented.
Marti, Javier +13 more
core +1 more source
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
doaj +1 more source
Inter Numerology Interference Reduction Using Windowing Technique For OFDM Based Multi-Numerologies
Journal of Applied Science and Engineering, 2022 Cyclic Prefix – Orthogonal Frequency Division Multiplexing is undoubtedly the fundamental waveform for the upcoming wireless standards. Mixed / multi-numerology scheme is one of the promising key features for 5G wireless standard, but it suffers from a ...
P. Kumar, K.R. Usha Rani
doaj +1 more source
Advanced Channel Estimation for MIMO-OFDM in Realistic Channel Conditions
, 2007 An advanced decision-directed channel estimation scheme is proposed, which is suitable for employment in a wide range of multi-antenna multi-carrier systems as well as for communications over the entire range of practical channel conditions.
Akhtman, J. +3 more
core +2 more sources