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In this paper, we consider the OFDM-based heterogeneous cognitive radio networks (HCRNs) and investigate the resource allocation problem for heterogenous users which include both Single-network and Multi-homing users in HCRNs with imperfect spectrum sensing and guaranteed quality of service (QoS). In order to maximize the capacity of the OFDM-based HCRNs, the joint subcarrier and power allocation...
Spectrum sharing in OFDM-based Cognitive Radio Networks (CRN) is investigated by using graph theory. We consider the networks in which a set of secondary links (SLs) make underlay access to support single-hop ad hoc transmission. Spectrum sharing must be carried out in SLs so that no excessive interference is caused to links of the primary network and maximizes the total achievable rates of SLs. We...
In this paper, we investigate the power allocation for spectrum sharing with constraints of energy consumption in a fixed period. The proposed online power auction is designed according to the pricing discipline of non-cooperative game. Though avoiding abusing energy while interference is great at some time steps, the regret of online power auction (OPA) is acceptable. Numerical results showed that...
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