Capacity Stability Analysis for 4-Element Compact MIMO Systems

Abstract:

In this paper, both 3-dimentional channel matrix eigenvalue probability distribution and a newly proposed generalized condition number (GCN) are used to analyze the capacity stability of 4-element compact MIMO systems when the mean angle of arrival (AoA) of the incident waves varies in the case that mutual coupling among array elements is considered. Theoretical analysis and numerical simulations show that comparing with the traditional 4-element linear array, 4-element square array with spatially symmetric structure is much less sensitive to the angle of incidence, indicating that the square array can maintain a more stable capacity.

• Periodical: Applied Mechanics and Materials (Volumes 130-134)
• Pages: 2985-2988
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.130-134.2985
• Online since: October 2011
• Authors: Yue Heng Li, Cheng Cheng, Mei Yan Ju, Guo Ping Tan
• Keywords: Channel Capacity, Compact MIMO, Eigenvalue Probability Distribution, Generalized Condition Number, Mutual Coupling

References

[1] D.S. Shiu, G.J. Foschini, M.J. Gan, and J. M. Kahn, Fading correlation and its effect on the capacity of multi-element antenna systems, IEEE Trans. on Commun., Vol. 48, No. 3, pp.502-513, Mar. (2000).

DOI: 10.1109/26.837052

[2] A. Abi and M. Kaveh, A space-time correlation model for multielement antenna systems in Mobile fading channels, IEEE on Selected Areas in Comm, vol. 20, pp.550-560, (2002).

DOI: 10.1109/49.995514

[3] Y. Wu, J.W.M. Bergmans, and S. Attallah, Effects of antenna correlation and mutual coupling on the carrier frequency offset estimation in MIMO systems, Wicom 2010, pp.1-4, (2010).

DOI: 10.1109/wicom.2010.5600570

[4] X. Li and Z.P. Nie, Mutual coupling effects on the performance of MIMO wireless channels, IEEE Antennas and Wireless Propagation Letters , vol. 3, pp.344-347, (2004).

DOI: 10.1109/lawp.2004.840252

[5] J. Zhao, Y.H. Li and G. S Sun, The effect of mutual coupling on capacity of 4-element squared antenna array MIMO systems", Wicom, 09, pp.1-4, (2009).

DOI: 10.1109/wicom.2009.5301788

[6] J. Gong, J. F. Hayes, and M. R. Soleymani, The effect of antenna physics on fading correlation and the capacity of multielement antenna systems, IEEE Trans. on Vehicular Tech. Vol. 56, No. 4, pp.1591-1599, July, (2007).

DOI: 10.1109/tvt.2007.895500

[7] G.J. Foschini and M.J. Gans, On limits of wireless communication in a fading environment when using multiple antennas, Wireless Personal Comm., Vol. 6, No. 3, pp.311-335, Mar. (1998).

[8] G.H. Golub and C.F. Vanloan, Matrix Computations (Third Edition), Baltimore & London: The Johns Hopkins University Press, (1996).

[9] C. Oestges, Validity of the Kronecker model for MIMO correlated channels, IEEE Vehicular Tech. Conf, vol. 6, pp.2818-2822, (2006).

DOI: 10.1109/vetecs.2006.1683382