Analysis of large MIMO DS-CDMA systems with imperfect CSI and spatial correlation

Beitrag bei einer Tagung
(Konferenzbeitrag)


Details zur Publikation

Autorinnen und Autoren: Vehkaperä M, Takeuchi K, Müller R, Tanaka T
Herausgeber: IEEE
Jahr der Veröffentlichung: 2010
Seitenbereich: 2098-2102
ISBN: 9781424469604
ISSN: 2157-8117
Sprache: Englisch


Abstract

The large system analysis of randomly spread MIMO DS-CDMA systems is provided. Correlated Rayleigh fading MIMO channels are assumed for all users. Linear multiuser detection with separate decoding and pilot-aided channel estimation are used. The results imply that with channel estimation, the performance can improve significantly as the correlation between the transmit antennas increases. No channel information at the transmitter is required, but the channel estimator needs knowlegde of the long term transmit correlation in advance. The numerical results demonstrate that in a 4 × 4 MIMO DS-CDMA system with two users per chip, high antenna correlation at the transmitter can double the ergodic spectral efficiency compared to the case of uncorrelated transmit antennas. © 2010 IEEE.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Müller, Ralf Prof. Dr.-Ing.
Professur für Informationsübertragung


Einrichtungen weiterer Autorinnen und Autoren

Kyoto University / 京都大学 Kyōto daigaku
NTNU Trondheim - Norwegian University of Science and Technology
University of Electro-Communications / 電気通信大学 (Denki-Tsūshin Daigaku)


Zitierweisen

APA:
Vehkaperä, M., Takeuchi, K., Müller, R., & Tanaka, T. (2010). Analysis of large MIMO DS-CDMA systems with imperfect CSI and spatial correlation. In IEEE (Eds.), Proceedings of the 2010 IEEE International Symposium on Information Theory, ISIT 2010 (pp. 2098-2102). Austin, TX, US.

MLA:
Vehkaperä, Mikko, et al. "Analysis of large MIMO DS-CDMA systems with imperfect CSI and spatial correlation." Proceedings of the 2010 IEEE International Symposium on Information Theory, ISIT 2010, Austin, TX Ed. IEEE, 2010. 2098-2102.

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Zuletzt aktualisiert 2019-09-07 um 10:53