On the spectral efficiency of MMSE vector precoding

Gardasevic V, Müller R, Zaidel BM, Geir Egil Oien GEO, Lundheim L (2011)

Publication Language: English

Publication Status: Published

Publication Type: Conference contribution, Conference Contribution

Publication year: 2011

Pages Range: 1805-1810

Article Number: 5779407

Event location: Cancun, Quintana Roo, Mexico MX

ISBN: 9781612842547

DOI: 10.1109/WCNC.2011.5779407

Abstract

In this paper, we investigate the spectral efficiency of vector precoding with minimum mean square error (MMSE) linear preprocessing. We restrict the discussion to the spectral efficiency of MMSE vector precoding with quadrature phase-shift keying (QPSK) signaling. Spectral efficiency is investigated by numerical simulations, and plotted as a function of the energy per bit divided by the noise spectral density E/N. The optimum system load , given as the ratio of the number of transmit and receive antennas, that maximizes spectral efficiency is obtained. Previously obtained spectral efficiency results for: Dirty paper coding (DPC), linear zero forcing (ZF), ZF vector precoding, and linear MMSE precoding are provided for comparison. We quantify the performance enhancement that MMSE vector precoding obtains in comparison to vector precoding with ZF linear preprocessing, in the low to medium E/N region. We also find that MMSE vector precoding does not significantly outperform its linear counterpart. © 2011 IEEE.

Authors with CRIS profile

Ralf Müller Professur für Informationsübertragung

Involved external institutions

NTNU Trondheim - Norwegian University of Science and Technology NO Norway (NO)

How to cite

APA:

Gardasevic, V., Müller, R., Zaidel, B.M., Geir Egil Oien, G.E.O., & Lundheim, L. (2011). On the spectral efficiency of MMSE vector precoding. In IEEE (Eds.), Proceedings of the 2011 IEEE Wireless Communications and Networking Conference, WCNC 2011 (pp. 1805-1810). Cancun, Quintana Roo, Mexico, MX.

MLA:

Gardasevic, Vesna, et al. "On the spectral efficiency of MMSE vector precoding." Proceedings of the 2011 IEEE Wireless Communications and Networking Conference, WCNC 2011, Cancun, Quintana Roo, Mexico Ed. IEEE, 2011. 1805-1810.

BibTeX: Download