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This paper investigates the power allocation between channels in a cognitive wireless network, using the spectrum underlay strategy where the primary users (PUs) and the cognitive users (CUs) coexist and operate in the same spectrum. We propose power allocation schemes to maximize the capacity of the overall system under the constraint that the interference to the PUs due to the CUs will not exceed...
The optimum models of harvesting yield and net profits of large diameter trees for broadleaved forest were developed, of which include matrix growth sub-model, harvesting cost and wood price sub-models, based on the data from Hongshi Forestry Bureau, in Changbai Mountain region, Jilin Province, China. The data were measured in 232 permanent sample plots. With the data of permanent sample plots, the...
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