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首页> 外文期刊>Parallel and Distributed Systems, IEEE Transactions on >A Truthful QoS-Aware Spectrum Auction with Spatial Reuse for Large-Scale Networks
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A Truthful QoS-Aware Spectrum Auction with Spatial Reuse for Large-Scale Networks

机译：具有大规模空间复用功能的真正QoS感知频谱拍卖

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摘要

In cognitive radio networks (CRNs), a wireless user with primary access right on a channel (called primary user) has prioritized access to the channel and the user with secondary access right (called secondary user) can use the channel when the primary user is idle. Spectrum auction has emerged as a promising approach to address the access allocation problem in CRNs. A significant challenge in designing such auction is providing truthfulness to avoid market manipulation. In most previous work, the primary access rights on channels are pre-determined before the auction and bidders can only compete for the secondary access rights. However, a user's requirement on spectrum access rights relies on their QoS demands. Therefore, it is much desirable to allocate spectrum access rights on the basis of QoS demands as well as to exploit the resulting spatial spectrum reuse opportunities. To solve this problem, we propose TRUMP, a truthful spectrum auction mechanism, by taking into consideration both QoS demands and spectrum spatial reuse, which can drastically improve spectrum utilization. The theoretical analysis proves that TRUMP achieves truthfulness and individual rationality with polynomial-time complexity. Our extensive simulation results show that our proposals outperform previous work in terms of both social welfare and spectrum utilization.
机译：在认知无线电网络（CRN）中，在信道上具有主要访问权限的无线用户（称为主要用户）已优先访问该信道，而在具有主要访问权限的情况下，具有辅助访问权限的用户（称为辅助用户）可以使用该信道。闲。频谱拍卖已成为解决CRN中访问分配问题的一种有前途的方法。设计此类拍卖的一个重大挑战是提供真实性以避免市场操纵。在大多数以前的工作中，渠道的主要访问权限是在拍卖之前确定的，投标人只能竞争次要访问权限。但是，用户对频谱访问权限的要求取决于他们的QoS要求。因此，非常需要基于QoS需求来分配频谱访问权限以及利用所得到的空间频谱重用机会。为了解决这个问题，我们提出了一种真正的频谱拍卖机制TRUMP，它同时考虑了QoS需求和频谱空间重用，可以大大提高频谱利用率。理论分析证明，TRUMP实现了多项式时间复杂度的真实性和个体合理性。大量的仿真结果表明，我们的建议在社会福利和频谱利用方面都优于以前的工作。

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