Reduction of the frequency offset influence in OFDM using an optimal PRS coding and MLSD
Journal Title: International Journal of Research in Computer and Communication Technology - Year 2014, Vol 3, Issue 1
Abstract
In this work a methodology for the synthesis of optimal correlative codes to reduce inter-carrier interference (ICI) in OFDM systems and maintain good BER performance at large frequency offsets is studied. For the synthesis of codes a goal function is used, that combines two criteria - the first minimizes ICI by frequency offset and the second minimizes the BER for Maximum Likelihood Sequence Detection (MLSD). BER and PAPR performances, obtained by means of methodology for synthesis of optimal PRS coefficients in BPSK and QPSK OFDM systems, have been shown. The new simulation studies are made with the proposed polynomials for frequency offset ε = 0, 0.1 and 0.2. Improvement in BER and PAPR performance has been detected.
Authors and Affiliations
Ilia Georgiev Iliev, Stanio Kolev, Stoicho Manev
Keywords
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- EP ID EP27798
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