Star loading exchanging method based on OFDM and cross layer design
A cross-layer design and satellite-borne technology, applied in the field of satellite communication, can solve the problems of poor adaptability, achieve the effect of improving spectrum utilization law, reducing mutual interference, and realizing statistical multiplexing
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[0121] Table 1 Simulation parameters-1
[0122] Satellite uplink bandwidth
[0123] Figure 8 Under the condition of the same transmission power and the same transmission rate, the bit error rate performance comparison of the receiving end when the modulation system of each subcarrier is adaptively configured is compared with that of the receiving end when the modulation system of each subcarrier is fixedly configured. It can be seen that the bit error rate of the modulation system with adaptive configuration of each subcarrier is significantly improved than that of the modulation system with fixed configuration of each subcarrier.
[0124] Figure 9 Given the same bit error rate (0.001) requirements and the same transmission power, the transmission rate that can be achieved when the modulation system of each subcarrier is set adaptively and the transmission rate that can be achieved when the modulation system of each subcarrier is fixed is set Transfer rate compar...
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