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This paper studies the resource-allocation problem for a heterogeneous network (HetNet) in which the spectrum owned by a macrocell operator (MCO) can be shared by both unlicensed users (UUs) and licensed users (LUs). We formulate a novel hierarchical game theoretic framework to jointly optimize the transmit powers and subband allocations of the UUs and the pricing strategies of the MCO. In our framework,...
With the increasing popularity of data services and applications, data center networks have been introduced to serve users in a centralized fashion. Furthermore, the flexibility of the data service subscribers' (DSSs') requirements motivates data center virtualization so as to optimize the resource allocation among all DSSs. However, as the massive data centers are usually far away from the DSSs,...
Life cycle cost is an important index to measure the economics of an equipment system, however, many existing uncertainties pose great challenges to researchers in this field. In this paper, the relationship between cost and reliability under uncertain circumstances was analyzed, and a tradeoff model considering the uncertainties between the reliability and the cost was presented, in which the uncertainty...
Consumers' loyalty is essential to the enterprises' success in e-commerce. In order to find out which factors have impact on consumer loyalty, a literature review was employed using content analysis and a "7C" model of consumer loyalty in B2C e-commerce was built. Then we did an empirical research to prove the reliability of the model. A questionnaire wad designed and data were collected...
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