Title :
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
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;
Conference_Titel :
Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual
Print_ISBN :
0-7803-7757-5
DOI :
10.1109/VETECS.2003.1207143
