Cognitive radio network frequency spectrum distribution method based on embedded particle swarm gaming

• Main Authors: LIANG YU, CHEN JINGLIN, ZHONG PENGJIU, HU JING, HUANG DECHANG, YANG JIANG, WANG JIANXU, LIU JUEFU, LI BO
• Format: Patent
• Language: English
• Published: 27.01.2016
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; WIRELESS COMMUNICATIONS NETWORKS

The invention discloses a cognitive radio network frequency spectrum distribution method based on embedded particle swarm gaming. The method includes extracting the characteristic information of cognitive users; establishing a non-cooperative gaming model based on the characteristics of the cognitive users; resolving the gaming model by means of inner and outer particle swarm algorithms, namely, an embedded particle swarm algorithm; resolving and calculating the channel preference set of each cognitive user in the gaming model by means of the inner particle swarm algorithm based on the characteristics of the cognitive user; resolving the non-cooperative gaming model by means of the outer particle swarm algorithm based on the channel preference set of each cognitive user, and outputting the optimal frequency spectrum distribution result and a corresponding power matrix. Under the underplay frequency spectrum sharing manner, an optimal frequency spectrum distribution scheme is obtained by means of the embedded particle swarm algorithm. The method provided combines the game theory method and the particle swarm algorithm, the channel distribution and power control, rapidly distributes frequency spectrum sources, and moreover, maximizes the benefits of the cognitive users and the system profits within the maximum tolerable interference threshold of a main user.