The advantages of a known sequence versus cyclic prefix in a SC/FDE system

Witschnig H, Mayer T, Springer A, Koppler A, Maurer L, Huemer M, Weigel R (2002)

Publication Type: Conference contribution

Publication year: 2002

Book Volume: 3

Pages Range: 1328-1332

Conference Proceedings Title: International Symposium on Wireless Personal Multimedia Communications

Event location: Honolulu, USA

Journal Issue: 5

Abstract

In this work we investigate the advantages of a known symbol sequence - a so-called unique word (UW) - instead of the well-known cyclic prefix (as is used in OFDM systems) for a single carrier system with frequency domain equalization (SC/FDE). The concept of UW fulfills the theorem of cyclic convolution - required to implement an efficient equalization for the SC/FDE structure. We elaborate on the advantages that result for decision feedback equalization (DFE) in detail. It is shown that a DFE based on the concept of UW shows significant advantages in comparison to a traditional time domain DFE or a DFE based on cyclic prefix. Simulation results confirm the theoretical advantages.

Authors with CRIS profile

Robert Weigel Lehrstuhl für Technische Elektronik

Involved external institutions

Universität der Bundeswehr München DE Germany (DE) Johannes Kepler Universität (JKU) Linz AT Austria (AT)

How to cite

APA:

Witschnig, H., Mayer, T., Springer, A., Koppler, A., Maurer, L., Huemer, M., & Weigel, R. (2002). The advantages of a known sequence versus cyclic prefix in a SC/FDE system. In International Symposium on Wireless Personal Multimedia Communications (pp. 1328-1332). Honolulu, USA.

MLA:

Witschnig, Harald, et al. "The advantages of a known sequence versus cyclic prefix in a SC/FDE system." Proceedings of the International Symposium on Wireless Personal Multimedia Communications, Honolulu, USA 2002. 1328-1332.

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