Talks and Poster Presentations (with Proceedings-Entry):
M. Hampejs, P. Svac, G. Tauböck, K. Gröchenig, F. Hlawatsch, G. Matz:
"Sequential LSQR-based ICI equalization and decision-feedback ISI cancellation in pulse-shaped multicarrier systems";
Poster: IEEE International Workshop on Signal Processing Advances for Wireless Communications (SPAWC) 2009,
- 06-24-2009; in: "Proceedings of IEEE International Workshop on Signal Processing Advances for Wireless Communications (SPAWC) 2009",
We propose a frequency-domain method for equalizing intercarrier interference (ICI) and intersymbol interference (ISI) in multicarrier transmissions over rapidly time-varying and strongly delay-spread channels. Postcursor ISI is cancelled by a decision-feedback structure, and ICI is equalized by a sequential version of the recently proposed LSQR equalizer, based on a band approximation for the frequency-domain channel matrix. The sequential LSQR equalizer uses an interference cancellation scheme with reliability-based sorting of sets of subcarriers. This approach is shown to yield excellent performance at moderate complexity. A pulse-shaped multicarrier system is considered because of its generality and advantages. This framework includes cyclic-prefix OFDM as a special case.
Electronic version of the publication:
Created from the Publication Database of the Vienna University of Technology.