Номер журнала: 2018.3
Заголовок статьи: Parameters calculation of logical channel for a secondary user in a group of two primary channels
This paper considers the scenario when the resulting logical channel for a secondary user in a cognitive radio system is formed by the algorithm minimizing the number of physical channel changes. The stochastic activity of primary users in a physical channel is characterized by a simple Markov chain. We present the analytical method for forming an accurate stochastic model (a simple Markov chain) of the resulting logical channel. The method is based on the aggregations of the graph states describing the channel change process in the algorithm. The result of the method describes the stochastic availability of the resources for a secondary user in the formed logical channel.
P. Krasheninnikov, O. Melentyev, I. Shevnina
signal-to-noise ratio estimation, SNR, moments of random variable distribution
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