A multi‐spot‐beam satellite is an attractive technique for future satellite communications since it can support high data rates by projecting high power density to each spot beam and can reuse a frequency in different cells to increase the total system capacity. In this letter, we propose a resource management technique adjusting the bandwidth of each beam to minimize the difference between the traffic demand and allocated capacity. This represents a reasonable solution for dynamic bandwidth allocation, considering a trade‐off between the maximum total capacity and fairness among the spot beams with different traffic demands.
In this paper, we propose an efficient rate one quasiorthogonal space-time block code for three antenna system. In order to compensate the performance degradation due to quasiorthogonal scheme, in this proposed scheme, we incorporate a selective receiver for decoding. The receiver divides the received signals into two groups, and two receiving antennas alternatively operate to receive the divided signals. By this way, we can eliminate the interference from the neighboring signals in the same symbol almost by half. The simulation results demonstrate that the proposed scheme can provide improved performance.
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