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In this paper, we investigate the problem of recall mechanism in a dynamic spectrum auction system. The licensed spectrum holders (SHs) can auction their idle channels to the secondary wireless service providers (SWSPs) for economic incentive. However, the primary user (PU) of an SH has higher priority than the SWSPs for the spectrum access. To deal with a sudden increase in PUs’ spectrum demands...
The user-cell association mechanism is one of the important research topics for radio resource management in heterogeneous wireless networks. Existing studies mainly concerned the physical performance such as throughput and SINR, and ignore the upper layer users demand. For avoiding blindness of pursuing higher data rate and achieving more rational user-cell association, a novel method is proposed...
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