| Paper: | SPCOM-P6.2 | ||
| Session: | OFDM and Multi-Carrier Systems | ||
| Time: | Wednesday, May 19, 15:30 - 17:30 | ||
| Presentation: | Poster | ||
| Topic: | Signal Processing for Communications: Multi-Carrier, OFDM, and DMT Systems | ||
| Title: | SINR MAXIMIZING EQUALIZER DESIGN FOR OFDM SYSTEMS | ||
| Authors: | Hossein Zamiri-Jafarian; University of Toronto | ||
| Reza Parsaee; Ferdowsi University | |||
| Hossein Khoshbin; Ferdowsi University | |||
| Subbarayan Pasupathy; University of Toronto | |||
| Abstract: | A novel time domain equalizer (TEQ) design approach is proposed in this paper based on maximizing signal-to interference plus noise ratio (SINR). To increase the bandwidth efficiency of OFDM systems, the TEQ is used to mitigate the intersymbol interference (ISI) created by a channel with longer impulse response duration than that of the cyclic prefix (CP). The true ISI, ICI and noise parts of the signal at the output of equalizer are formulated based on the overall impulse response (OIR) (convolution of the CIR and equalizer impulse response). SINR Maximizing Time-domain Equalization (SMTE) method estimates the tap coefficients of the equalizer by maximizing the SINR of the signal at the output of equalizer. Computer simulation and analytical results show that the performance of the SMTE method is superior to the performance of the much used method of channel impulse response shortening (IRS). | ||
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