Research Article
Optimization of Cell Size in Ultra-Dense Networks with Multiattribute User Types and Different Frequency Bands
| | Parameters | UMa | UMi-street canyon |
| | Carrier frequency | 800 MHz | | 1.8 GHz | | 3.5 GHz | | 28 GHz |
| | System bandwidth | |
| | TX antenna height (m) | 25 | 10 |
| | Outdoor user RX antenna height (m) | 1.5 | 1.5 |
| | Indoor user RX antenna height (m) | 9 | 9 |
| | TX antenna gain, (dBi) | 5 | 5 |
| | RX antenna gain, (dBi) | 2 | 2 |
| | BS TX power, (dBm) | 30 | 30 |
| | Thermal noise density (dBm/Hz) | -174 | -174 |
| | Effective environment height (m) | 1 | 1 |
| | Active user density (users/km2) | 600 | 600 |
| | Indoor user ratio | 0.8 | 0.8 |
| | Minimum distance between UE and BS (m) | 2 | 2 |
| | Shadow fading in LOS (dB) | 4 | 4 |
| | Shadow fading in NLOS (dB) | 6 | 7.82 |
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