Link adaptation for LTE-A systems employing MMSE turbo equalization

Cheema SA, Grossmann M, Landmann M, Del Galdo G (2014)

Publication Type: Conference contribution

Publication year: 2014

Publisher: Institute of Electrical and Electronics Engineers Inc.

Conference Proceedings Title: WSA 2014; 18th International ITG Workshop on Smart Antennas

Event location: Erlangen, DEU

ISBN: 9783800735846

Abstract

Turbo equalization for multiple-input-multipleoutput (MIMO) wireless communication systems can achieve close-to-optimal performance over frequency selective channels at reasonable complexity. In this paper, a turbo equalizer for the Long Term Evolution-Advanced (LTE-A) uplink is proposed. Moreover, a novel approach for link adaption based on the extrinsic information transfer (EXIT) chart analysis of the turbo equalizer is discussed. Specifically, it is shown that the specific feedback parameters CQI, PMI, and RI used for spatial processing can be efficiently calculated. Numerical results are presented to demonstrate the performance enhancement achieved in realistic channel fading environments by the proposed link adaption scheme.

Involved external institutions

Technische Universität Ilmenau DE Germany (DE) Fraunhofer-Institut für Integrierte Schaltungen (IIS) DE Germany (DE)

How to cite

APA:

Cheema, S.A., Grossmann, M., Landmann, M., & Del Galdo, G. (2014). Link adaptation for LTE-A systems employing MMSE turbo equalization. In WSA 2014; 18th International ITG Workshop on Smart Antennas. Erlangen, DEU: Institute of Electrical and Electronics Engineers Inc..

MLA:

Cheema, Sher Ali, et al. "Link adaptation for LTE-A systems employing MMSE turbo equalization." Proceedings of the 18th International ITG Workshop on Smart Antennas, WSA 2014, Erlangen, DEU Institute of Electrical and Electronics Engineers Inc., 2014.

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