Virtual resource-sharing mechanisms in software-defined and virtualized wireless network
Di Zhang · Jyväskylä University Digital Archive (University of Jyväskylä) · 2018
On the way towards providing scenario-based transmission (enhanced mobile broadband (eMBB), ultra-reliable and low-latency communications (uRLLC), and massive machine type communications (mMTC)) in 5G, the incorporation of soft-ware-defined networking (SDN) and wireless network virtualization (WNV) is foreseen to offer such softwarization and service-oriented architecture. This research concentrates on reducing the capital expenses (CapE) and operation expenses (OpEx) significantly from a radio resource management(RRM) perspective. With this objective, one software-defined and virtualized (SDV) architecture for enabling different-level virtualization is first proposed. The designed wireless virtualization scheme offers the ability to abstract and slice the wireless network by separating the control and data planes in a flexible manner. Second, multiple virtual resource-sharing (VRS) mechanisms for ensuring fairness and competitiveness among mobile operators and providers using auction and contract theories are proposed. With such VRS mechanisms, diverse quality-of-service (QoS) requirements of users (data rate, delay, priority, etc.), profits of conflicting operators and providers, and different system-level objectives (system throughput and energy efficiency) are ensured. To validate our proposed VRS mechanisms, a variety of mathematical demonstrations are conducted with different theoretic approaches (auction and contract theories). The performance of each mechanism is separately evaluated with system level simulations.