From measurements performed in the 700 MHz band, this paper analyzes the effect of spatial diversity on the channel capacity through the propagation of an OFDM mobile radio signal and compares with the results of a single branch providing what improvement of the capacity is attained with the SIMO system.
Index Terms
channel capacity; power-delay profile; signal dispersion; spatial diversity
| Device | Specification | |
|---|---|---|
| Vector signal generator MG3700A, Anritsu | 250 kHz - 6GHz | |
| 2 cables RG 213 | 1 m/0.2 dB loss; 6 m/1.33 dB loss | |
| TX | Power Amplifier | ZHL-16W-43+ |
| Digital Power Source | PS-5000, ICEL | |
| Sectorial Antenna APX75-866512-CTO, RFS | 65 ° beam aperture/698-896 MHz/ 14 dBi | |
| Vector signal analyzer MS-2692A, Anritsu | 50 Hz - 26.5 GHz | |
| Antenna CE-150727, CELTA | 2 dBi in 760 MHz | |
| Low Noise Amplifier | 2 LNA ZX60-33LN-S+/ 19.5 dB | |
| RX | GPS | GarmimMAP 64S |
| 2 Laptops | Dell Inspiron | |
| 2 Cables RG 213 | 1 m/0.2 dB loss; 6 m/1.33 dB loss | |
| 2 Network cables |
| Antenna | Normalized capacity [b/s/Hz] | Mean [b/s/Hz] | Standard deviation [b/s/Hz] |
|---|---|---|---|
| 1 | 0.092 < C/B < 11.74 | 4.88 | 3.20 |
| 2 | 0.129 < C/B < 12.75 | 5.37 | 3.34 |
