Abstract
This paper addresses the derivation of a closed-form expression for the correlation coefficient of a pair of antenna elements at the base station. The closed-form expression is derived for the case of a multi-modal, truncated Laplacian Power Azimuth Spectrum which impinges on antenna elements exhibiting a directive radiation pattern that is widely used in standardisation bodies. To avoid numerical instability, an approximation for small Azimuth Spreads is presented. The proposed closed-form expression, along with its approximation, is successfully validated against the numerical computation of the correlation coefficient.
Original language | English |
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Pages (from-to) | 1351-1359 |
Number of pages | 9 |
Journal | IEEE Transactions on Wireless Communications |
Volume | 4 |
Issue number | 4 |
DOIs | |
Publication status | Published - 2005 |
Keywords
- Antenna radiation patterns
- MIMO systems
- correlation