Large amounts of channels will be allocated to the individual user if only one rule is used when calculating labels in existing parallel algorithm. Aiming at this condition, we propose a novel algorithm, named as parallel joint channel allocation algorithm on cognitive radio system, in which two rules are used together when calculating labels. This algorithm reduces influence of single time allocation aggregation and improved system fairness. Simulation shows that system fairness is improved. Simulation results show that the proposed algorithm is effective
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