Comparison of PSK and DPSK modulation in a coded OFDM system

Author

Rohling, Hermann ; May, Thomas

Author_Institution

Inst. of Telecommun., Tech. Univ. Braunschweig, Germany

Volume

2

fYear

1997

fDate

4-7 May 1997

Firstpage

870

Abstract

Orthogonal frequency division multiplexing (OFDM) is often proposed for high data rate transmission over frequency-selective channels in order to simplify equalisation. In this paper 4- and 8-PSK and DPSK with coherent and non-coherent demodulation are considered for performance comparison. A channel estimation and equalisation is necessary for coherent demodulation whereas this effort is not required in the case of non-coherent detection. The performance comparison is made for convolutionally coded OFDM systems

Keywords

Gaussian channels; channel coding; convolutional codes; demodulation; differential phase shift keying; frequency division multiplexing; modulation coding; multipath channels; parameter estimation; phase shift keying; signal detection; 4-PSK; 8-PSK; AWGN channel; DPSK; channel equalisation; channel estimation; coherent demodulation; convolutionally coded OFDM systems; frequency-selective channels; high data rate transmission; multipath channel; noncoherent demodulation; noncoherent detection; orthogonal frequency division multiplexing; performance; Bandwidth; Channel coding; Convolution; Convolutional codes; Decoding; Demodulation; Differential quadrature phase shift keying; Modulation coding; OFDM modulation; Phase shift keying;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1997, IEEE 47th

Conference_Location

Phoenix, AZ

ISSN

1090-3038

Print_ISBN

0-7803-3659-3

Type

conf

DOI

10.1109/VETEC.1997.600453

Filename

600453