In traditional wireless network infrastructure, multiple wireless networks with various access points (APs) would be deployed in the same area. Although this deployment can easily provide service for mobile user equipment (MUE), any AP only allows the authorized MUEs to access, and thus some wireless networks might be overloaded and others might be lightly loaded. As a result, resource allocation would be inefficient. Using wireless network virtualization, an infrastructure provider (InP) can deploy only a single physical AP in the same area. This AP, which is controlled by a network operator (NO), is shared by multiple service providers (SPs) coexisting in the same AP. In the framework of wireless network virtualization, NO is in charge of resource allocation for the whole system and SP focuses on the access, connection and resource requirement of MUEs (such as the desired transmission power in downlink). In this paper, a Game theory based Two Steps Power Allocation scheme for wireless network virtualization, called G2SPA, is proposed, which designs a Stacklberg Equilibrium price strategy based on the interactions between SP and MUE, and then performs McAfee based auction to reallocate resource. The numerous experimental simulation results show that the rightness and effectiveness of G2SPA.
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