Title :
An exact error probability analysis of OFDM systems with frequency offset
Author :
Dharmawansa, Prathapasinghe ; Rajatheva, Nandana ; Minn, Hlaing
Author_Institution :
Dept. of Electron. & Comput. Eng., Hong Kong Univ. of Sci. & Technol., Hong Kong
fDate :
1/1/2009 12:00:00 AM
Abstract :
In this paper, we derive exact closed form bit error rate (BER) or symbol error rate (SER) expressions for orthogonal frequency division multiplexing (OFDM) systems with carrier frequency offset (CFO). We consider the performance of an OFDM system subject to CFO error in additive white Gaussian noise (AWGN), frequency flat and frequency selective Rayleigh fading channels. The BER/ SER performances of BPSK and QPSK modulation schemes are analyzed for AWGN and frequency-flat Rayleigh fading channels while BPSK is considered for frequency-selective Rayleigh fading channels. Our results can easily be reduced to the respective analytical error rate expressions for the OFDM systems without CFO error. Furthermore, the simulation results are provided to verify the accuracy of the new error rate expressions.
Keywords :
AWGN channels; OFDM modulation; Rayleigh channels; error statistics; quadrature phase shift keying; AWGN channels; BPSK; OFDM systems; QPSK; additive white Gaussian noise channels; bit error rate; carrier frequency offset; error probability analysis; frequency selective Rayleigh fading channels; orthogonal frequency division multiplexing systems; quadrature phase shift keying; symbol error rate; AWGN; Additive white noise; Binary phase shift keying; Bit error rate; Error analysis; Error probability; Fading; OFDM modulation; Performance analysis; Quadrature phase shift keying; Bit error rate (BER), frequency offset, frequency selective fading, orthogonal frequency division multiplexing (OFDM), Rayleigh fading, symbol error rate (SER);
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2009.0901.060454
