Resource Allocation for Efficient Bandwidth Provisioning in Virtualized Wireless Networks

We develop a general resource allocation framework to solve the bandwidth provisioning problem for wireless virtualization deployment in OFDMA based wireless networks. Our design aims to maximize the profit achieved by an infrastructure provider (InP) through leasing radio resources to mobile virtual network operators (MVNOs) while minimizing the amount of allocated spectrum for efficient spectrum provisioning. Toward this end, we describe how to formulate such a resource allocation problem and then propose a dual-based algorithm to attain the asymptotically optimal solution. We also present a low-complexity resource allocation algorithm, which is suitable for online implementation. Numerical results confirm the excellent performance of the proposed asymptotically optimal and low-complexity algorithms in achieving high profit for the InP as well as efficient resource provisioning.