Bit rate comparison of adaptive OFDM and cyclic prefixed single-carrier with DFE

Author

Devillers, Bertrand ; Vandendorpe, Luc

Author_Institution

Centre Tecnol. de Telecomunicacions de Catalunya, Barcelona, Spain

Volume

13

Issue

11

fYear

2009

fDate

11/1/2009 12:00:00 AM

Firstpage

838

Lastpage

840

Abstract

This letter considers two variants of a cyclic prefixed block transmission: (i) orthogonal frequency division multiplexing (OFDM), (ii) cyclic prefixed single-carrier (CPSC) transmission with decision feedback equalization (DFE). We aim at comparing these two schemes in terms of achievable bit rate with adaptive bit loading. It is analytically demonstrated that, for all signal to noise ratio values, OFDM achieves a bit rate greater than or equal to that of DFE-CPSC, independently of whether uniform or optimal power allocation is considered.

Keywords

OFDM modulation; decision feedback equalisers; fading channels; multipath channels; CPSC transmission; DFE; adaptive OFDM; bit rate comparison; cyclic prefixed single-carrier; decision feedback equalization; optimal power allocation; orthogonal frequency division multiplexing; Bit error rate; Bit rate; Decision feedback equalizers; Fading; Intersymbol interference; OFDM modulation; Signal analysis; Signal to noise ratio; Transmitters; Wireless communication; Cyclic prefixed single-carrier, multicarrier, OFDM;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2009.091008

Filename

5337060