Abstract
We present an empirically based model for the gain of an indoor antenna array. This corresponds to the re-parametrization of the Greenstein-Erceg model, as applied to 5 m-50 m narrowband outdoor-indoor links. Our model is applicable to a few adjacent tones in an OFDM femtocell system such as LTE. We find that as much as 14 out of 16 dB of antenna-gain are attainable even in rich indoor scattering conditions. At the same time, no larger fade margin is required when using the array vs. the omnidirectional antenna. To provide a reference for the observed results we consider a simple propagation model, which is analyzed theoretically and via simulation. This model is found to match our empirical results very well.
Original language | English |
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Article number | 6942285 |
Pages (from-to) | 1447-1456 |
Number of pages | 10 |
Journal | IEEE Transactions on Wireless Communications |
Volume | 14 |
Issue number | 3 |
DOIs | |
State | Published - Mar 2015 |
Externally published | Yes |
Keywords
- Channel models
- directive antennas
- gain reduction factor
- outdoor-indoor wireless links