Low complexity turbo-like decision feedback equalization for broadband wireless single carrier systems

Author

Koppler, A. ; Springer, A. ; Huemer, M. ; Weigel, R.

Author_Institution

Commun. & Information Eng., Johannes Kepler Univ., Linz, Austria

Volume

3

fYear

2003

Firstpage

1846

Abstract

Single carrier transmission with frequency domain equalization (SC/FDE) provides a serious alternative to orthogonal frequency division multiplexing (OFDM) for broadband wireless access (BWA) systems as well as for W-LAN´s. In this work we consider low complexity Turbo-like decision feedback equalization for conventional block wise SC/FDE. The proposed scheme accomplishes the efficiency of ideal decision feedback equalization. Simulation results show a remarkable performance increase for large signal constellations and highly frequency selective multipath channels.

Keywords

OFDM modulation; broadband networks; decision feedback equalisers; frequency-domain analysis; multipath channels; optimisation; wireless LAN; OFDM; WLAN; broadband wireless access; broadband wireless single carrier systems; frequency domain equalization; frequency selective multipath channels; low complexity turbo-like decision feedback equalization; orthogonal frequency division multiplexing; signal constellations; single carrier transmission; wireless local area network; Bit error rate; Convolution; Convolutional codes; Decision feedback equalizers; Frequency domain analysis; Intersymbol interference; OFDM; Physical layer; Telecommunication standards; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual

ISSN

1090-3038

Print_ISBN

0-7803-7757-5

Type

conf

DOI

10.1109/VETECS.2003.1207143

Filename

1207143