认知无线电系统中基于多标拍卖的信道分配机制

Channel Allocation Mechanisms for Cognitive Radio System Based on Repeated Multi-bid Auction

为在认知无线电系统中实现对频谱的有效管理,文中提出了一种基于多标拍卖的信道分配机制,并给出了三种分配规则:吞吐量最大规则、效用公平规则以及时间公平规则。最后通过仿真验证了三种分配规则下的系统性能,仿真结果说明,进行信道分配时利用吞吐量最大规则能使系统吞吐量达到最大,采用效用公平规则能达到最佳效用公平性。使用时间公平规则可保证用户在为传输文件而竞争频谱资源过程中的时间公平,且文件的平均传输时间最少、时延最小。

For managing spectrum effectively in cognitive radio system, a channel allocation mechanism based on repeated multi-bid auction is proposed, which uses three different channel allocation rules:max throughput rule, utility fairness rule and time fairness rule. Finally, the performance of the allocation mechanism is verified by simulation results, and the simulation results show that the mechanism for max throughput rule can maximize the total throughput of the CR system, the utility fairness rule-based mecha...