Title :
Precise bit error probability analysis of DCT OFDM in the presence of carrier frequency offset on AWGN channels
Author :
Tan, Peng ; Beaulieu, Norman C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Alberta Univ., Edmonton, Alta., Canada
fDate :
28 Nov.-2 Dec. 2005
Abstract :
A precise method for calculating the bit error probability of a discrete cosine transform (DCT)-based orthogonal frequency-division multiplexing (OFDM) system on AWGN channels in the presence of frequency offset is derived. These accurate results are used to examine and compare the bit error probability performances of a DCT-OFDM system and the conventional discrete Fourier transform (DFT)-based OFDM system. Several signaling formats, such as binary phase shift keying (BPSK), quaternary phase shift keying (QPSK), and 16-ary quadrature amplitude modulation (16-QAM) are considered. Analysis and simulation results show that the DCT-OFDM system outperforms the DFT-OFDM system in the presence of carrier frequency offset.
Keywords :
AWGN channels; OFDM modulation; discrete cosine transforms; error statistics; quadrature amplitude modulation; quadrature phase shift keying; 16-QAM; 16-ary quadrature amplitude modulation; AWGN channels; BPSK; DCT; DFT; OFDM system; QPSK; binary phase shift keying; bit error probability analysis; carrier frequency offset; conventional discrete Fourier transform; discrete cosine transform; orthogonal frequency-division multiplexing system; quaternary phase shift keying; AWGN channels; Binary phase shift keying; Discrete Fourier transforms; Discrete cosine transforms; Error analysis; Error probability; Frequency division multiplexing; OFDM; Phase shift keying; Quadrature phase shift keying;
Conference_Titel :
Global Telecommunications Conference, 2005. GLOBECOM '05. IEEE
Print_ISBN :
0-7803-9414-3
DOI :
10.1109/GLOCOM.2005.1577887
