Next generation wireless communication networks are expected to achieve ever increasing data rates. Multi-User Multiple-Input-Multiple-Output (MU-MIMO) is a key technique to obtain the expected performance, because such a technique combines the high capacity achievable using MIMO channel with the benefits of space division multiple access. In MU-MIMO systems, the base stations transmit signals to two or more users over the same channel, for this reason every user can experience inter-user interference. This paper provides a capacity analysis of an online, interference-based pre-coding algorithm able to mitigate the multi-user interference of the MU-MIMO systems in the context of a realistic WiMAX application scenario. Simulation results show that pre-coding can significantly increase the channel capacity. Furthermore, the paper presents several feasibility considerations for implementation of the analyzed technique in a possible FPGA-based software defined radio.

Zero-forcing pre-coding for MIMO WiMAX transceivers: Performance analysis and implementation issues / Cattoni, A.; Le Moullec, Y.; Sacchi, Claudio. - ELETTRONICO. - (2013), pp. 1-7. (Intervento presentato al convegno IEEE Aerospace Conference 2013 tenutosi a Big Sky (MT) nel 2-9 Marzo 2013) [10.1109/AERO.2013.6496820].

Zero-forcing pre-coding for MIMO WiMAX transceivers: Performance analysis and implementation issues

Sacchi, Claudio
2013-01-01

Abstract

Next generation wireless communication networks are expected to achieve ever increasing data rates. Multi-User Multiple-Input-Multiple-Output (MU-MIMO) is a key technique to obtain the expected performance, because such a technique combines the high capacity achievable using MIMO channel with the benefits of space division multiple access. In MU-MIMO systems, the base stations transmit signals to two or more users over the same channel, for this reason every user can experience inter-user interference. This paper provides a capacity analysis of an online, interference-based pre-coding algorithm able to mitigate the multi-user interference of the MU-MIMO systems in the context of a realistic WiMAX application scenario. Simulation results show that pre-coding can significantly increase the channel capacity. Furthermore, the paper presents several feasibility considerations for implementation of the analyzed technique in a possible FPGA-based software defined radio.
2013
Aerospace Conference, 2013 IEEE
Piscataway, NJ
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS
978-1-4673-1812-9
Cattoni, A.; Le Moullec, Y.; Sacchi, Claudio
Zero-forcing pre-coding for MIMO WiMAX transceivers: Performance analysis and implementation issues / Cattoni, A.; Le Moullec, Y.; Sacchi, Claudio. - ELETTRONICO. - (2013), pp. 1-7. (Intervento presentato al convegno IEEE Aerospace Conference 2013 tenutosi a Big Sky (MT) nel 2-9 Marzo 2013) [10.1109/AERO.2013.6496820].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/34960
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