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为满足次级用户随时接入频谱的需求,避免次级用户谎报边际估值、到达时间和离开时间的行为,将认知无线电网络中一个频谱经纪人和多个次级用户之间的动态频谱分配问题建模为一个多单位在线拍卖,并提出了一种在线频谱拍卖机制.结果表明,机制不仅能在完全未知将来投标序列的情况下,立即对当前投标做出是否分配频谱的决策,而且满足激励相容性和个体理性,同时,在无干扰的用户之间支持频谱的空间复用性,实现了公平有效的频谱分配.最后,通过实例验证了该机制的实用性和可行性.
In order to meet the requirement of the secondary users to access the spectrum at any time and to avoid the sub-users from reporting the marginal valuation, the arrival time and the departure time, the dynamic spectrum between a spectrum broker and multiple secondary users in the cognitive radio network The distribution problem is modeled as a multi-unit online auction and presents an online spectrum auction mechanism.The results show that the mechanism not only can make the decision whether to allocate frequency spectrum to the current bid without completely knowing the future bidding sequence, but also Satisfy incentive compatibility and individual rationality, at the same time, support space spectrum reusability of users without interference, and achieve fair and effective spectrum allocation.Finally, the practicality and feasibility of this mechanism are verified by examples.