| Paper: | SPCOM-P7.3 | ||
| Session: | MIMO Receiver Algorithms | ||
| Time: | Thursday, May 20, 09:30 - 11:30 | ||
| Presentation: | Poster | ||
| Topic: | Signal Processing for Communications: Space-Time/MIMO Channel Equalization | ||
| Title: | GROUP MAP BLAST DETECTOR | ||
| Authors: | Akrum Elkhazin; University of Toronto | ||
| Konstantinos N. Plataniotis; University of Toronto | |||
| Subbarayan Pasupathy; University of Toronto | |||
| Abstract: | The Bell-Labs Layered Space-time (BLAST) architecture is a simpleand efficient multi-antenna coding structure that can achieve high-spectral efficiency [1]. Many BLAST detectors require more receiver antennas than transmitter antennas. We propose a novel turbo-processing BLAST detector based on a group detection strategy that can operate in systems with fewer receiver antennas than transmitter antennas. A maximum a posteriori (MAP) decision is made using a group of transmitted symbols and the remaining signal contribution is treated as interference. The interference is characterized as non-zero mean colored noise source that is whitened before a decision is made. The proposed detector, the Group MAP (GMAP) detector, is a generalization of both the MAP detector and the turbo-processing Minimum Mean Squared Error (MMSE) detector in [2,3]. A novel grouping algorithm is proposed for the GMAP detector. Simulation is used to compare the GMAP detector with the MAP detector and MMSE detector. | ||
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