Journal of Communications and Networks

The Korean Institute of Commucations and Information Sciences (한국통신학회)
권호 표지

Hybrid Diversity-Beamforming Technique for Outage Probability Minimization in Spatially Correlated Channels

  • Kwon, Ho-Joong (School of Electrical Engineering and INMC, Seoul National University) ;
  • Lee, Byeong-Gi (School of Electrical Engineering and INMC, Seoul National University)
  • Published : 2007.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, we present a hybrid multi-antenna technique that can minimize the outage probability by combining the diversity and beamforming techniques. The hybrid technique clusters the transmission antennas into multiple groups and exploit diversity among different groups and beamforming within each group. We analyze the performance of the resulting hybrid technique for an arbitrary correlation among the transmission antennas. Through the performance analysis, we derive a closed-form expression of the outage probability for the hybrid technique. This enables to optimize the antenna grouping for the given spatial correlation. We show through numerical results that the hybrid technique can balance the trade-offs between diversity and beamforming according to the spatial correlation and that the optimally designed hybrid technique yields a much lower outage probability than the diversity or beamforming technique does in partially correlated fading channels.

Keywords

References

  1. B. Friedlander and S. Scherzer, 'Beamforming versus transmit diversity in the downlink of a cellular communications system,' IEEE Trans. Veh. Technol., vol. 53, pp. 1023-1034, July 2004 https://doi.org/10.1109/TVT.2004.830980
  2. R. A. Soni, R. M. Buehrer, and R. D. Benning, 'Transmit beamforming combined with diversity techniques for CDMA2000 systems,' in Proc. IEEE ICASSP, Salt Lake, May 2001, pp. 1029-1032
  3. M. Nezafat and M. Kaveh, 'Analysis of diversity, beamforming and hybrid diversity-beamforming systems,' in Proc. IEEE ICASSP, Hong Kong, Apr. 2003, pp. IV.369-372
  4. D. Gesbert, M. Shafi, D. Shiu, P. J. Smith, and A. Naguib, 'From theory to practice: An overview of MIMO space-time coded wireless systems,' IEEE J. Set. Areas Commun., vol. 21, pp. 281-300, Apr. 2003 https://doi.org/10.1109/JSAC.2003.809458
  5. J. Salz and J. H. Winters, 'Effect of fading correlation on adaptive arrays in digital mobile radio,' IEEE Trans. Veh. Technol., vol. 43, pp. 1049-1057, Nov. 1994 https://doi.org/10.1109/25.330168
  6. A. S. Dakdouki and M. Tabulo, 'On the eigenvalue distribution of smartantenna arrays in wireless communications systems,' IEEE Antennas Propag. Mag., vol. 46, pp. 158-167, Aug. 2004 https://doi.org/10.1109/MAP.2004.1305533
  7. S. M. Alamouti, 'A simple transmit diversity technique for wireless communications,' IEEE J. Sel. Areas Commun., vol. 16, pp. 1451-1458, Oct. 1998 https://doi.org/10.1109/49.730453
  8. V. Tarokh, H. Jafarhani, and A. R. Calderbank, 'Space-time block codes from orthogonal designs,' IEEE Trans. Inf. Theory, vol. 45, pp. 1456-1467, July 1999 https://doi.org/10.1109/18.771146
  9. A. Wittneben, 'A new bandwidth efficient transmit antenna modulation diversity scheme for linear digital modulation,' in Proc. IEEE ICC, Geneva, Switzeland, May 1993, pp. 1630-1634
  10. J. H. Winters, 'The diversity gain of transmit diversity in wireless systems with rayleigh fading,' IEEE Trans. Veh. Technol., vol. 47, pp. 119-123, Feb. 1998 https://doi.org/10.1109/25.661038
  11. G. J. Foschini and M. J. Gans, 'On limits of wireless communications in a fading environment when using multiple antennas,' Wireless Pers. Commun., vol. 6, pp. 311-335, Mar. 1998 https://doi.org/10.1023/A:1008889222784
  12. N. L. Johnson, S. Kotz, and N. Balakrishnan, Continuous Univariate Distribution. New York: Wiley, 1994
  13. A. Narula, M. J. Lopez, M. D. Trott, and G. W. Wornell, 'Efficient use of side information in multiple-antenna data transmission over fading channel,' IEEE J. Sel. Areas Commun., vol. 16, pp. 1423-1436, Oct. 1998 https://doi.org/10.1109/49.730451