Abstract
AbstractThis paper analyzes the spectrum trading problem in virtualized fifth generation networks to enhance the network performance with respect to the spectrum utilization. The problem is modeled as a many‐to‐many matching game with utility‐based preferences and determines the matching between mobile network operators and mobile virtual network operators. The two proposed versions of utility functions for each set aim at maximizing the satisfaction of both sets with conflicting interests and improving the overall spectrum efficiency. In the simulation evaluation, the proposed scheme is compared with three different schemes in terms of the system utility, individual, and pair matching satisfaction. We also investigate the scalability aspects, the strategy plan impact on the matching performance of our proposed scheme, and at the same time, we attempt to make appropriate assumptions closer to reality. Our proposed scheme shows much better performance than the other schemes achieving a quite high level of satisfaction for the matching result on both sets.
Highlights
The most precious and scarce resource for wireless communications is spectrum frequency
This major concept relies on two 5G key enablers, Software Defined Network (SDN) that enables the decoupling of the infrastructure from the offered services, and Network Function Virtualization (NFV) that refers to the implementation of network functions in software running on general-purpose computing/storage platforms
We go a step further, and this paper presents an extension of that preliminary evaluation,[35] providing a complete evaluation on the M2MM scheme for spectrum trading in virtualized 5G networks, since: It clarifies how SDN and NFV, as 5G enabler technologies, build the base where new 5G business models will grow
Summary
The most precious and scarce resource for wireless communications is spectrum frequency. The spectrum policy determines that most of the available spectrum is assigned to wireless mobile companies on a long term basis for large geographical regions.[1] many mobile subscribers, several wireless devices per user and thousands of new applications create the need for frequency bands As a result, both licensed and unlicensed bands are becoming congested and several times licensed bands are identified as underutilized,[2] even in the most overcrowded cities, such as New York,[3] due to spectrum mismanagement. Resource virtualization helps simplify the control of virtual networks and avoid overprovisioning by assigning wireless resources intelligently based on the actual need.[8] Essentially, wireless virtualization concerns the creation of multiple separate virtual networks by physical resource sharing This major concept relies on two 5G key enablers, Software Defined Network (SDN) that enables the decoupling of the infrastructure from the offered services, and Network Function Virtualization (NFV) that refers to the implementation of network functions in software running on general-purpose computing/storage platforms.
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