Progress In Electromagnetics Research
ISSN: 1070-4698, E-ISSN: 1559-8985
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By X. Chen

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In this paper, evaluations of diversity gains and capacities of multi-element antenna based on limited channel samples in a reverberation chamber (RC) are studied. It is shown that, for a large antenna array, the classical sample estimation based on finite channel samples tends to underestimate its diversity gain and capacity. An improved (yet slightly more complicated) eigenvalue estimation method is applied in both diversity gain and capacity calculations, which effectively alleviates the estimation bias. The findings of the present paper are applicable for measurements where the maximum independent channel samples per antenna element are limited. Apart from simulations, we also evaluate the performances of the classical and improved eigenvalue estimators based on measurements in a RC. Based on the results of this paper, the performance of the RC measurement (with limited samples) for multi-element antennas can be readily enhanced.

X. Chen, "Measurements and Evaluations of Multi-Element Antennas Based on Limited Channel Samples in a Reverberation Chamber," Progress In Electromagnetics Research, Vol. 131, 45-62, 2012.

1. Rappaport, , T. S., , Wireless Communications --- Principles and Practice,, 2nd Ed., Prentice Hall PTR, , 2002.

2. Arsalane, , N., , M. Mouhamadou, C. Decroze, D. Carsenat, M. A. Garcia-Fernandez, and T. Monediere, "3GPP channel model emulation with analysis of MIMO-LTE performances in reverberation chamber ," Int. J. Antennas Propaga.,, Vol. 2012, 2012.

3. Diallo, , A., , C. Luxey, P. Le Thuc, R. Staraj, and G. Kossiavas, "\Diversity performance of multiantenna systems for UMTS cellular phones in different propagation environments," Int. J. Antennas Propaga., Article ID 836050, 10,, Vol. 2008, 2008.

4. Plicanic, V., , B. K. Lau, A. Derneryd, and Z. Ying, "Actual diversity performance of a multiband diversity antenna with hand and head effects," IEEE Trans. Antennas Propag., , Vol. 57, No. 5, 1547-1556, , 2009..

5. Sanchez-Heredia, , J. D., J. F. Valenzuela-Valdes, A. M. Martinez-Gonzalez, and D. A. Sanchez-Hernandez, "Emulation of MIMO Rician fading environments with mode-stirred reverberation chambers ," IEEE Trans. Antennas Propag., Vol. 59, No. 2, 654-660, 2011..

6. Remley, , K. A., , H. Fielitz, C. L. Holloway, Q. Zhang, Q. Wu, and D. W. Matolak, , "Simulation of a MIMO system in a reverberation chamber, ," Proc. IEEE EMC Symp.,, 2011..

7. Kildal, , P.-S., K. Rosengren, and , "Correlation and capacity of MIMO systems and mutual coupling, radiation effciency, and diversity gain of their antennas: Simulations and measurements in a reverberation chamber," IEEE Commun. Mag.,, Vol. 42, No. 12, 102-112, 2004..

8. Centeno, , A. , N. Alford, and , "Measurement of Zigbee wireless communications in mode-stirred and mode-tuned reverberation chamber," Progress In Electromagnetics Research M,, Vol. 18, 171-178, 2011.

9. Staniec, K. , A. J. Pomianek, and , "On simulating the radio signal propagation in the reverberation chamber with the ray launching method," Progress In Electromagnetics Research B, Vol. 27, 83-99, 2011.

10. Chen, , X., , P.-S. Kildal, and J. Carlsson, "Fast converging measurement of MRC diversity gain in reverberation chamber using covariance-eigenvalue approach," IEICE Transactions on Electronics, Vol. E94-C, No. 10, , 1657-1660, , 2011.

11. Garcia-Garcia, , L., B. Lindmark, N. Jalden, and C. Orlenius, "MIMO capacity of antenna arrays evaluated using radio channel measurements, reverberation chamber and radiation patterns," IET Microw. Antennas Propag., Vol. 1, 1160-1169, , 2007.

12. Yamamoto, , A., , T. Sakata, T. Hayashi, K. Ogawa, J. Nielsen, G. F. Pedersen, J. Takada, and K. Sakaguchi, "Effectiveness of a fading emulator in evaluating the performance of MIMO systems by comparison with a propagation test," Proc. EuCAP,, 1-5, 2010..

13. Hallbjorner, , P., , Z. Ying, M. Hakansson, C. Wingqvist, T. Anttila and J. Welinder, "Multipath simulator for mobile terminal antenna characterisation," IET Microw. Antennas Propag., Vol. 4, 743-750, , 2010..

14. Fielitz, , H., , K. A. Remley, C. L. Holloway, Q. Zhang, Q. Wu and D. W. Matolak, "Reverberation-chamber test environment for outdoor urban wireless propagation studies," IEEE Antennas Wireless Propag. Lett., Vol. 9, , 52-56, 2010.

15. Ferrara, , G., , M. Migliaccio, and A. Sorrentino, "Characterization of GSM non-line-of-sight propagation channels generated in a reverberating chamber by using bit error rates," IEEE Trans. Electromagn. Compat. , Vol. 49, No. 3, 467-473, 2007.

16. Kostas, , J. G. , B. Boverie, and , "Statistical model for a mode-stirred chamber," IEEE Trans. Electromagn. Compat., Vol. 33, No. 4, 366-370, , 1991..

17. Schwartz, , M., , W. R. Bennet, and S. Stein, , "Communication Systems and Techniques, ," McGraw-Hill, , 1966..

18. Lee, , W. C. Y., "Mutual coupling effect on maximum-ratio diversity combiners and application to mobile ratio," IEEE Trans. Commun. Technol., Vol. 18, 779-791, , 1970.

19. Chen, X., "Robust calculations of maximum ratio combining diversity gains based on stochastic measurements," Progress In Electromagnetics Research Letters, Vol. 31, 107-112, 2012.

20. Foschini, , G. J. , M. J. Gans, and , "On limits of wireless communications in a fading environment when using multiple antennas ," Wireless Personal Communications, Vol. 6, No. 3, 311-335, 1998.

21. Boche, , H. , E. A. Jorswieck, and , "On the ergodic capacity as a function of the correlation properties in systems with multiple transmit antennas without CSI at the transmitter," IEEE Trans. Commun.,, Vol. 52, No. 10, , 2004.

22. Jorswieck, , E., H. Boche, and , "Majorization and matrix-monotone functions in wireless communications," Foundations Trends Commun. Inf. Theory, Vol. 3, No. 6, 553-701, 2006.

23. Lawley, , D. N., "Tests of significance for the latent roots of covariance and correlation matrices," Biometrika,, Vol. 43, 128-136, 1956..

24. Mestre, , X., "Improved estimation of eigenvalues and eigenvectors of covariance matrices using their sample estimates," IEEE Trans. Inf. Theory, Vol. 54, No. 11, 5113-5129, 2008.

25. Tulino, A. M. , S. Verdu, and , "Random matrix theory and wireless communications," Foundations Trends Commun. Inf. Theory, Vol. 1, 1-182, 2004..

26. Levin, , G., S. Loyka, and , "From multi-keyholes to measure of correlation and power imbalance in MIMO channels: Outage capacity analysis," IEEE Trans. Inf. Theory,, Vol. 57, No. 6, 3515-3529, 2011.

27. Holloway, , C. L., D. A. Hill, J. M. Ladbury, P. F. Wilson, G. Koepke, and J. Coder, "On the use of reverberation chamber to simulate a rician radio environment for the testing of wireless devices," IEEE Trans. Antennas Propag., Vol. 54, No. 11, 3167-3177, , 2006..

28. Lemoine, , C., , E. Amador, and P. Besnier, "On the K-factor estimation for Rician channel simulated in reverberation chamber," IEEE Trans. Antennas Propag., , Vol. 59, No. 3, 1003-1012, 2011.

29. Chen, X., , P.-S. Kildal, and S.-H. Lai, "Estimation of average Rician K-factor and average mode bandwidth in loaded reverberation chamber," IEEE Antennas Wireless Propag. Lett.,, Vol. 10, 1437-1440, 2011.

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