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Maximizing the SDMA Mobile Radio Capacity Increase by DOA Sensitive Channel Allocation

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Abstract

In a cellular mobile radio system an SDMA (Space Division Multiple Access) component can be implemented for the reuse of radio channels physically incorporated by time, frequency or code slots. Since SDMA is based on the spatial separation of different users operating in the same channel, a DOA (Direction of arrival) sensitive channel allocation scheme is essential for maximizing system capacity. In this paper we present the Eigenvector method, a computationally efficient algorithm to do this job. We also present simulation results on the Eigenvector method operating in a typical urban mobile radio cell. The simulated blocking probabilities are then used to predict the capacity increase which can be expected after adding an SDMA component to a conventional mobile radio system.

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References

  1. P. Jung, J. Blanz and P.W. Baier, "Coherent Receiver Antenna Diversity for CDMA Mobile Radio Systems Using Joint Detection", The 4th Int. Symp. on Personal, Indoor and Mobile Radio Comm. (PIMRC 93), Yokohama, Japan, 1993.

  2. X. Lasne, C. Baroux and G.K. Kaleh, Joint Reception of Multi-User Data for Synchronous CDMA, COST231(92)85, 1992.

  3. C. Farsakh and J.A. Nossek, "Application of SDMA to Mobile Radio", The 5th Int. Symp. on Personal, Indoor and Mobile Radio Comm. (PIMRC 94), The Hague, The Netherlands, pp. 736-739, 1994.

  4. C. Farsakh and J.A. Nossek, "Data Detection and Channel Allocation on the Uplink of an SDMA Mobile Radio System", Vehicular Technology Conference (VTC 97), Phoenix AZ, U.S.A., 1997.

  5. C. Brunner, M. Haardt, C. Farsakh and J.A. Nossek, "A Two Step Spatio-Temporal Filtering Scheme for Smart Antennas Compared to a Multi-User Maximum Likelihood Algorithm", submitted to The IEEE 48th Vehicular Technology Conference (VTC 98), Ottawa, Canada, 1998.

  6. H.P. Lin, S.S. Jeng, I. Parra, G. Xu, W.J. Vogel and G.W. Torrence, "Experimental Studies of SDMA Schemes forWireless Communication", The 1995 International Conference on Acoustics, Speech and Signal Processing (ICASSP 95), IEEE Press, Detroit, pp. 1760-1763, 1995.

    Google Scholar 

  7. S.S. Jeng, H.P. Lin, G. Xu and W.J. Vogel, "Measurements of Spatial Signatures of an Antenna Array", The 6th Int. Symp. on Personal, Indoor and Mobile Radio Communications (PIMRC 95), Toronto, Canada, pp. 669-672, 1995.

  8. J. Wigard, P.E. Mogensen, F. Frederiksen and O. Nørklit, "Evaluation of Optimum Diversity Combining in DECT", The 6th Int. Symp. on Personal, Indoor and Mobile Radio Communications (PIMRC 95), Toronto, Canada, pp. 507-511, 1995.

  9. M. Haardt and J.A. Nossek, "Unitary ESPRIT: How to Obtain Increased Estimation Accuracy with a Reduced Computational Burden", IEEE Trans. Signal Processing, Vol. 43, pp. 1232-1242, 1995.

    Google Scholar 

  10. M. Haardt, M.D. Zoltowski, C.P.Mathews and J.A. Nossek, "2D Unitary ESPRIT for Efficient 2D Parameter Estimation", Proc. Int. Conf. Acoust., Speech, Signal Processing (ICASSP 95), Detroit MI, U.S.A., pp. 2096-2099, 1995.

  11. C. Farsakh and J.A. Nossek, "Maximizing the Capacity of an SDMA Mobile Radio System", Int. Conf. Telecommunication (ICT 97), Melbourne, Australia, 1997.

  12. P.C. Eggers, "Angular Dispersive Mobile Radio Environments Sensed by Highly Directive Antennas", The 6th Int. Symp. on Personal, Indoor and Mobile Radio Comm. (PIMRC 95), Toronto, Canada, pp. 522-526, 1995.

  13. P. Zetterberg, "A Comparison of Two Systems for Downlink Communication with Antenna Arrays at the Base", IEEE Wireless Communications Systems Symposium 1995, Long Island, New York, 1995.

  14. C. Farsakh and J.A. Nossek, "Channel Allocation and Downlink Beamforming in an SDMA Mobile Radio System", The 6th Int. Symp. on Personal, Indoor and Mobile Radio Comm. (PIMRC 95), Toronto, Canada, pp. 687-691, 1995.

  15. A. Klein, W. Mohr, R. Thomas, P.Weber and B.Wirth, "Directions-of-Arrival of PartialWaves in Wideband Mobile Radio Channels for Intelligent Antenna Concepts", The IEEE 46th Vehicular Technology Conference (VTC 96), Atlanta GA, U.S.A., pp. 849-853, 1996.

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Authors and Affiliations

  1. Germany

    Christof Farsakh & Josef A. Nossek

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  1. Christof Farsakh
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  2. Josef A. Nossek
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Farsakh, C., Nossek, J.A. Maximizing the SDMA Mobile Radio Capacity Increase by DOA Sensitive Channel Allocation. Wireless Personal Communications 11, 63–77 (1999). https://doi.org/10.1023/A:1018610130390

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  • DOI: https://doi.org/10.1023/A:1018610130390

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