A Comparative Study of Nyquist Pulse‐Shaping Impact on Performance of Coded OFDM Systems with Carrier Frequency Offset

Nyquist Pulse-shaping is one of the methods used to mitigate the effects of frequency offset in OFDM system which result in intercarrier interference (ICI). In this paper, the performance of coded OFDM(COFDM) with various Nyquist pulse shaping over AWGN channel with carrier frequency offset (CFO) are investigated. It is observed from simulation results that the Franks pulse outperforms all Nyquist pulses considered here in term of BER performance. Numerical results for ICI power reduction show that Franks and DJ pulses are quite similar, and outperform other pulses considered in this paper.

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INTER CARRIER INTERFERENCE AND SIGNAL TO INTERFERENCE RATIO OF VARIOUS PULSE SHAPING FUNCTIONS USED IN OFDM SYSTEM WITH CARRIER FREQUENCY OFFSET

International Journal of Electronics Signals and Systems ◽

10.47893/ijess.2012.1068 ◽

2012 ◽

pp. 68-71

Author(s):

SHANKAR AENAGANDULA ◽

ASHOK KUMAR ◽

SRINIVAS K ◽

MONIKA NANDA

Keyword(s):

Carrier Frequency ◽

Orthogonal Frequency Division Multiplexing ◽

Pulse Shaping ◽

Carrier Frequency Offset ◽

Signal To Noise Ratio ◽

Frequency Offset ◽

Performance Comparison ◽

Intercarrier Interference ◽

Ofdm Systems ◽

Ofdm System

Orthogonal Frequency Division Multiplexing (OFDM) is the important modulation of choice for fourthgeneration broadband multimedia wireless systems. This paper is focused on the problem of reducing the intercarrierinterference (ICI) and signal to noise ratio in the transmission over OFDM using various pulse shaping methods. Here we have performed a detailed performance comparison of various pulse shaping functions used in OFDM System with Carrier Frequency Offset. They appear to be suitable for transmission in OFDM systems with carrier frequency offset. The results obtained by analysis show that the performance improvement over conventional pulse shapes, are significant for reducing average intercarrier-interference (ICI) power and increased ratio of average signal power to average ICI power (SIR).

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Analysis of the effects of Nyquist pulse-shaping on the performance of OFDM systems with carrier frequency offset

European Transactions on Telecommunications ◽

10.1002/ett.1316 ◽

2009 ◽

Vol 20 (1) ◽

pp. 9-22 ◽

Cited By ~ 25

Author(s):

Peng Tan ◽

Norman C. Beaulieu

Keyword(s):

Carrier Frequency ◽

Pulse Shaping ◽

Carrier Frequency Offset ◽

Frequency Offset ◽

Ofdm Systems ◽

Nyquist Pulse

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Comparison of SPS and FA methods for Blind Carrier Frequency Offset Estimation in OFDM systems

International Journal of Mathematical Models and Methods in Applied Sciences ◽

10.46300/9101.2022.16.2 ◽

2022 ◽

Vol 16 ◽

pp. 7-11

Author(s):

K. Seshadri Sastry ◽

K. Baburao ◽

A.V. Prabu ◽

G.Naveen Kumar

Keyword(s):

Carrier Frequency ◽

Orthogonal Frequency Division Multiplexing ◽

Carrier Frequency Offset ◽

Frequency Offset ◽

Intercarrier Interference ◽

Frequency Division ◽

Ofdm Systems ◽

Frequency Offset Estimation ◽

Synchronization Errors ◽

Carrier Frequency Offset Estimation

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.

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