Open AccessComparison of SPS and FA methods for Blind Carrier Frequency Offset Estimation in OFDM systems
Author(s) -
K. Seshadri Sastry,
K. Baburao,
A. V. Prabu,
Kumar Gaurav
Publication year - 2022
Publication title -
international journal of mathematical models and methods in applied sciences
Language(s) - English
Resource type - Journals
ISSN - 1998-0140
DOI - 10.46300/9101.2022.16.2
Subject(s) - orthogonal frequency division multiplexing , carrier frequency offset , intersymbol interference , frequency offset , orthogonality , computer science , synchronization (alternating current) , electronic engineering , smoothing , preamble , interference (communication) , offset (computer science) , telecommunications , mathematics , engineering , decoding methods , channel (broadcasting) , geometry , computer vision , programming language
In orthogonal frequency-division multiplexing (OFDM) systems, synchronization issues are of great importance since synchronization errors might destroy the orthogonality among all subcarriers and, therefore, introduce intercarrier interference (ICI) and intersymbol interference (ISI). Several schemes of frequency offset estimation in OFDM systems have been investigated. This paper compares performance and computational complexity of Smoothing Power Spectrum (SPS) and Frequency Analysis (FA) methods for blind carrier frequency offset (CFO) estimation in OFDM systems.