BER Analysis of Dual Carrier Modulation Based on ML Decoding

Author

Park, Ki-Hong ; Sung, Hyung-Ki ; Ko, Young-Chai

Author_Institution

Sch. of Electr. Eng., Korea Univ., Seoul

fYear

2006

fDate

Aug. 2006

Firstpage

1

Lastpage

4

Abstract

In this paper, we consider dual carrier modulation (DCM) used in multi-band orthogonal frequency division multiplexing (MB-OFDM) standard. At the transmitter, DCM transforms two successive QPSK symbols to two 16-QAM symbols with a certain mapping and they are decoded at the receiver by the maximum likelihood (ML) rule. When the QPSK symbols are transformed into two 16-QAM symbols, the original proposed form is to use two different mappings which is not Gray mapping but optimized in the sense of the bit error rate (BER). In this paper we study the DCM by providing the intuition behind the idea of DCM from the constellation of the ML decoded signals and the exact BER analysis over AWGN and simulation BER examples over Rayleigh fading channels

Keywords

AWGN channels; OFDM modulation; Rayleigh channels; channel coding; error statistics; maximum likelihood decoding; quadrature amplitude modulation; quadrature phase shift keying; AWGN channel; BER analysis; DCM; MB-OFDM system; QAM symbol; QPSK symbol; Rayleigh fading channel; bit error rate; dual carrier modulation; maximum likelihood decoding; multiband orthogonal frequency division multiplexing; quadrature amplitude modulation; quadrature phase shift keying; AWGN; Analytical models; Bit error rate; Constellation diagram; Fading; Maximum likelihood decoding; OFDM; Quadrature phase shift keying; Signal analysis; Transmitters; Channel state information; Dual carrier modulation; Rayleigh fading channels;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2006. APCC '06. Asia-Pacific Conference on

Conference_Location

Busan

Print_ISBN

1-4244-0574-2

Electronic_ISBN

1-4244-0574-2

Type

conf

DOI

10.1109/APCC.2006.255858

Filename

4023163