Title :
Probability of Error Analysis of 4-QAM OFDM Systems with Random Residual Frequency Offset
Author :
Weeraddana, P.C. ; Rajatheva, R.M.A.P. ; Minn, Hlaing
Author_Institution :
Asian Inst. of Technol., Pathumthani
Abstract :
In this paper, we derive closed-form symbol error rate (SER) expressions for orthogonal frequency division multiplexing (OFDM) systems with residual carrier frequency offset (CFO). We treat CFO/residual CFO as a random parameter in this study. In particular, we consider channel-independent as well as channel-dependent random residual CFOs. We derive SER expressions for 4-quadrature amplitude modulation (4-QAM) OFDM systems in the cases of additive white Gaussian noise (AWGN) and frequency flat Rayleigh fading channels. The simulation results are provided to verify the accuracy of the new SER expressions.
Keywords :
AWGN channels; OFDM modulation; Rayleigh channels; error statistics; quadrature amplitude modulation; 4-QAM OFDM systems; 4-quadrature amplitude modulation systems; AWGN channels; Random Residual Frequency Offset; additive white Gaussian noise channels; channel-dependent random residual CFO; closed-form symbol error rate expressions; error analysis probability; frequency flat Rayleigh fading channels; orthogonal frequency division multiplexing systems; AWGN; Discrete Fourier transforms; Error analysis; Fading; Frequency estimation; OFDM; Performance analysis; Quadrature phase shift keying; Signal to noise ratio; Time domain analysis;
Conference_Titel :
Vehicular Technology Conference, 2008. VTC 2008-Fall. IEEE 68th
Conference_Location :
Calgary, BC
Print_ISBN :
978-1-4244-1721-6
Electronic_ISBN :
1090-3038
DOI :
10.1109/VETECF.2008.229
