An SDN-based framework for elastic resource sharing in integrated FDD/TDD LTE-A HetNets
Cloud Networking(2014)
Abstract
Spectrum and infrastructure sharing among multiple mobile network operators have recently drawn significant attention from the industry and the academia sectors. Recent advances in the area of Software Defined Networking (SDN) launch the design of innovative SDN-based solutions for resource sharing in multi-tier networks of macrocell and small-sized base stations, a.k.a. HetNet. In this paper, we present a novel SDN-based framework that enables efficient and elastic spectrum utilization among multiple operators in 3GPP LTE-A HetNet scenario. Assuming a multi-operator environment of Frequency Division Duplex (FDD) macrocells complemented by multi-tenant Time Division Duplex (TDD) pico cells, we present a SDN-based architecture that allows efficient resource sharing among the TDD and FDD systems in a dynamic way. A TDD frame re-configuration mechanism is also employed, to optimize the ratio of uplink and downlink slots in the TDD frame of picocells. System-level simulation results demonstrate that the combination of these two functional enhancements in the LTE-A HetNet, significantly reduces the application layer delay for both the FDD macrocell and TDD picocell systems, leading to highly efficient and dynamic spectrum sharing among multiple network operators.
MoreTranslated text
Key words
3G mobile communication,Long Term Evolution,frequency division multiplexing,picocellular radio,radio spectrum management,time division multiplexing,3GPP LTE-A HetNet scenario,FDD macrocells,SDN-based framework,TDD frame re-configuration mechanism,TDD picocell systems,dynamic spectrum sharing,elastic resource sharing,elastic spectrum utilization,frequency division duplex macrocells,functional enhancements,infrastructure sharing,innovative SDN-based solutions,integrated FDD-TDD LTE-A HetNet,mobile network operators,multioperator environment,multitenant TDD pico cells,multitenant time division duplex pico cells,multitier networks,small-sized base stations,software defined networking,system-level simulation,uplink slot-downlink slot ratio
AI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined