Title :
Receiving OFDM signals in channels with scattering
Author :
Viacheslav Kartashevskii;Kirill Belskiy
Author_Institution :
Department of multiservice networks and information security, Povolzhskiy State University of Telecommunications and Informatics, PSUTI, Samara, Russia
Abstract :
The algorithm of reception signals with orthogonal frequency multiplexing (OFDM) in channels with dispersion is considered. The offered algorithm is based on processing "in general" on an interval of dispersion of sequence of counting of the bending-around symbol OFDM for the purpose receiving estimates of maximum likelihood of this sequence with the subsequent formation solutions of rather transferred QAM - symbols according to the classical scheme with use of the FFT technology. For an assessment of a noise stability of algorithm statistical modeling is carried out it. It is shown offered algorithm in comparison with the classical scheme of processing of OFDM of signals possesses the best characteristics of a noise stability in channels with dispersion.
Keywords :
"OFDM","Signal processing algorithms","Quadrature amplitude modulation","Scattering","Estimation","Algorithm design and analysis","Interference"
Conference_Titel :
Problems of Infocommunications Science and Technology (PIC S&T), 2015 Second International Scientific-Practical Conference
DOI :
10.1109/INFOCOMMST.2015.7357308