Content-Aware D2D Caching for Reducing Visiting Latency in Virtualized Cellular Networks

• Guolin Sun,
• Hisham Al-Ward,
• Gordon Owusu Boateng,
• Wei Jiang,

Vol. 13, No. 2, February 27, 2019
10.3837/tiis.2019.02.003, Download Paper (Free):

• Resource Allocation
• caching strategy
• latency reduction
• Software-Defined Networking
• Information-centric networking
• wireless D2D communication

Abstract

Information-centric networks operate under the assumption that all network components have built-in caching capabilities. Integrating the caching strategies of information centric networking (ICN) with wireless virtualization improves the gain of virtual infrastructure content caching. In this paper, we propose a framework for software-defined information centric virtualized wireless device-to-device (D2D) networks. Enabling D2D communications in virtualized ICN increases the spectral efficiency due to reuse and proximity gains while the software-defined network (SDN) as a platform also simplifies the computational overhead. In this framework, we propose a joint virtual resource and cache allocation solution for latency-sensitive applications in the next-generation cellular networks. As the formulated problem is NP-hard, we design low-complexity heuristic algorithms which are intuitive and efficient. In our proposed framework, different services can share a pool of infrastructure items. We evaluate our proposed framework and algorithm through extensive simulations. The results demonstrate significant improvements in terms of visiting latency, end user QoE, InP resource utilization and MVNO utility gain.

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