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Two-way satellite communication that simultaneously shares spectrum, with subsequent interference cancelation, is an attractive means of efficiently using satellite resources. Systems may employ this method on full-transponder access, or with lease of a partial transponder. In this case, it is of interest to request bandwidth and power resources that minimize satellite costs. In this paper, the authors provide a solution to this optimization, using information-theoretic guidelines and a generic cost model, that can be easily translated into real coding and modulation options.
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