Interference suppression in MIMO systems for throughput enhancement and error reduction

Authors:
Mauro Biagi;Enzo Baccarelli;Nicola Cordeschi;Cristian Pelizzoni;Fabio Garzia
Affiliations:
University of Rome "La Sapienza", Rome, Italy;University of Rome "La Sapienza", Rome, Italy;University of Rome "La Sapienza", Rome, Italy;University of Rome "La Sapienza", Rome, Italy;University of Rome "La Sapienza", Rome, Italy
Venue:
Proceedings of the 2006 international conference on Wireless communications and mobile computing
Year:
2006

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Abstract

This contribution analyzes the problem of multi-user interference suppression via estimation and subtraction. In particular it is shown that spatial diversity helps the suppression capability of a Base Station and this has an important impact on performance. By fact, we show that the best solution does not consist in transmit at maximum energy level but, in order to allow interference estimation and cancellation, a trade off has to be solved. So, interference suppression can give arise to performance improvements both for achieved throughput (that can be "enhanced") and for error probability (that can be reduced).