Abstract
In this paper, we investigate the transmission over time-variant multipath Ray- leigh-fading channels employing Direct Sequence Code Division Multiple Access (DS-CDMA). In order to estimate the actual channel state as well as to detect the users’ data symbols an iterated channel estimation scheme employing pilot symbols in conjunction with soft decision interference cancellation is applied. We show that in this way the reliability of the channel estimation as well as data symbol detection can be considerably improved in the course of the iterative procedure and that for half and full load of the system nearly the same performance as that of a single user can be achieved.
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References
Lampe, A. and Huber, J. B. (1999). On improved multiuser detection with iterated soft decision interference cancellation. In Proc. of IEEE International Conference on Communications (ICC), pages 172–176, Vancouver, Canada.
MÜller, R. R. and Huber, J. B. (1998). Iterated soft-decision interference cancellation for CDMA. In Luise and Pupolin, editors, Digital Wireless Communications, pages 110–115. Springer-Verlag, London, U.K.
Proakis, J. G. (1995). Digital Communications. McGraw-Hill, New York, 3rd edition.
Schramm, P. (1996). Modulationsverfahren fÜr CDMA-Mobilkommunikations-systeme unter BerÜcksichtigung von Kanalcodierung und Kanalschätzung. Shaker, Aachen.
Teich, W. G. and Seidl, M. (1996). Code division multiple access communication: Multiuser detection based on a recurrent neural network structure. In Proc. of IEEE Intern. Symp. on Spread Spectrum Techniques and Applications (ISSSTA), pages 979–984, Mainz, Germany. Kluwer Academic Publishers.
Vasudevan, S. and Varanasi, M. K. (1996). Achieving near-optimum asymptotic efficiency and fading resistance over the time-varying rayleigh-faded cdma channel. IEEE Transactions on Communications, 44(9): 1130–1143.
Windpassinger, C. (1999). Gemeinsame Kanalschätzung fÜr Multiuser Übertragung. Studienarbeit (senior project, in German), Lehrstuhl fÜr Nachrichtentechnik, Universität Erlangen-NÜrnberg.
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© 2000 Springer Science+Business Media Dordrecht
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Lampe, A., Windpassinger, C. (2000). Multiuser Detection with Iterated Channel Estimation. In: Fazel, K., Kaiser, S. (eds) Multi-Carrier Spread Spectrum & Related Topics. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-4463-0_20
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DOI: https://doi.org/10.1007/978-1-4615-4463-0_20
Publisher Name: Springer, Boston, MA
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Online ISBN: 978-1-4615-4463-0
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