Research Article
Optimization of Power Allocation for Multiusers in Multi-Spot-Beam Satellite Communication Systems
Table 1
Parameters of the multi-spot-beam satellite communication system.
| | Parameter | Value |
| | Beam number | 4 | | User number | 20 | | User number per spot beam | 5 | | Traffic demand of each user | From 1 Mbps to 20 Mbps by step of 1 Mbps | | Total satellite power | 20 W | | Satellite transmitting antenna gain | 20000 | | Bandwidth of each spot beam | 100 MHz | | Gain-to-equivalent noise temperature ratio of the receiving equipment | 20 | | Downlink loss | 2 | | Spectral efficiency of the coding and modulation mode | 1.5 | | Roll-off factor of the coding and modulation mode | 1 | | Threshold signal-to-noise ratio per bit of the coding and modulation mode | 2.63 |
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