Abstract-This letter proposes a dynamic resource provisioning scheme for an OFDMA wireless virtualized network (WVN), where one base-station equipped with a large number of antennas serves users belonging to a number of service providers via different slices. In particular, joint power, sub-carrier, and antenna allocation problems are presented for both perfect and imperfect channel knowledge cases, aiming to maximize a sum-utility while maintaining a minimum rate per slice. Subsequently, relaxation and variable transformation are applied to develop the efficient algorithm to solve the formulated non-convex, combinational optimization problem. Simulation results reveal the benefits of applying a large number of antennas in this setup and evaluate the network performance for different system conditions. Index Terms-Large number of antennas, resource provisioning, wireless network virtualization.
A utility-based resource provisioning scheme for WNV with massive MIMO is investigated in REF .
Resource Provisioning in Wireless Virtualized Networks via Massive-MIMO
IEEE Wireless Communications Letters
IEEE Wireless Communications Letters
Mathematics Computer Science