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采用连续马尔可夫模型对有限数认知用户的接入进行建模,针对主用户数和认知用户数的变化,分析了认知用户占用授权信道的阻塞概率、强迫终止概率和信道中认知用户的平均数.仿真结果表明,随着主用户数和认知用户数的增加,认知用户阻塞概率和强迫终止概率增大,但主用户信道中认知用户数的平均数随主用户数的增加而减少,随认知用户数的增加而增大.
A continuous Markov model is used to model the access of a limited number of cognitive users. According to the change of the number of primary users and the number of cognitive users, the blocking probability, forced termination probability and channel identification of cognitive users are analyzed. The average number of known users.The simulation results show that with the increase of the number of primary users and the number of cognitive users, the cognitive user’s blocking probability and forced termination probability increase, but the average number of cognitive users in the primary user channel increases with the number of primary users The number of increase and decrease, with the increase of cognitive users increased.