Information-Centric Virtualized Cellular Networks With Device-to-Device Communications
Information-Centric Virtualized Cellular Networks With Device-to-Device Communications
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DOI：
10.1109/tvt.2016.2518658
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发表时间：
2016-01
影响因子：
6.8
通讯作者：
Kan Wang;F. Richard Yu;Hongyan Li
中科院分区：
文献类型：
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作者：
Kan Wang;F. Richard Yu;Hongyan Li
以信息为中心的无线网络虚拟化不仅可以在不同的服务提供商之间共享基础设施，还可以共享内容，不仅可以实现虚拟化，还可以实现网络内缓存。在本文中，我们提出了一种新的框架，以信息为中心的无线虚拟化和设备到设备（D2D）的通信，使内容缓存不仅在空中，但在移动终端以及。此外，内容是虚拟化的，可以由来自不同虚拟服务提供商的用户共享。在这个框架中，我们制定的虚拟资源分配和缓存策略作为一个联合优化问题，考虑到不仅虚拟化，但缓存在建议的信息为中心的无线网络虚拟化架构与D2D通信以及增益。此外，为了减少计算复杂度和信令开销，我们提出了一种分布式算法来解决制定的问题的基础上，最近的进展交替方向乘法器（ADMM），其中不同的各方只需要解决自己的问题，而无需交换信道状态信息（CSI）的快速收敛速度。大量的仿真进行了不同的系统参数，以显示所提出的方案的有效性。
Information-centric wireless network virtualization enables the sharing of not only the infrastructure but also the content among different service providers, enabling the gain of not only virtualization but in-network caching as well. In this paper, we propose a novel framework with information-centric wireless virtualization and device-to-device (D2D) communications, which enables content caching not only in the air but in the mobile device as well. Moreover, the content is virtualized and can be shared by users from different virtual service providers. In this framework, we formulate the virtual resource allocation and caching strategies as a joint optimization problem, considering the gain of not only virtualization but of caching in the proposed information-centric wireless network virtualization architecture with D2D communications as well. In addition, to reduce computational complexity and signaling overhead, we propose a distributed algorithm to solve the formulated problem based on recent advances in alternating direction method of multipliers (ADMM), in which different parties only need to solve their own problems without the exchange of channel state information (CSI) with fast convergence rate. Extensive simulations are conducted with different system parameters to show the effectiveness of the proposed scheme.