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Leveraging Wireless Virtualization for Network Capacity Optimization in HetNets

机译：利用Hetnets中的网络容量优化无线虚拟化

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摘要

Wireless virtualization is regarded as an emerging paradigm for enhancing radio frequency (RF) spectrum utilization through slicing of primary wireless resources in heterogeneous networks (HetNets). In this paper, we study the creation of virtual wireless networks through wireless virtualization for mobile virtual network operators (MVNOs) where portion of the primary bandwidth is sliced and leased to the MVNOs. For wireless virtualization, owners of wireless infrastructures in HetNets divide and reconfigure their RF bands to sublease to MVNOs based on their service-level-agreements while keeping enough wireless resources to their own users. Next, we leverage the wireless virtualization to investigate the network sum-capacity and revenue maximization problems for MVNOs where MVNOs offer competitive prices to attract more users for wireless communications. We evaluate the performance of the proposed approach using different metrics such as network sum-capacity, revenue of the MVNOs, competitive price for RF spectrum usage that is based on the spectral capacity of the MVNOs, and the outage probability. Numerical results obtained from simulations show that the sum-capacity of virtual network can be maximized while maximizing their revenue and offering lower/competitive spectrum-usage price for their users.
机译：无线虚拟化被认为是通过在异构网络（HetNet中）主要无线资源的切片加强的射频（RF）频谱利用一个新兴的范例。在本文中，我们通过对其中主带宽的一部分被切割并租赁给虚拟网络运营商移动虚拟网络运营商（MVNO）无线虚拟化研究虚拟无线网络的创建。对于无线虚拟化，在HetNet中的无线基础设施的拥有者划分和重新配置其射频频带转租根据其服务等级协议，同时保持足够的无线资源，以自己的用户虚拟网络运营商。接下来，我们利用无线虚拟化来探讨虚拟网络运营商，网络和能力和收益最大化的问题，其中虚拟网络运营商提供有竞争力的价格吸引了无线通信更多的用户。我们评估使用不同的指标，如网络和容量，虚拟网络运营商的收入所提出的方法的性能，竞争力的价格是基于虚拟网络运营商的的频谱容量和中断概率RF频谱的使用。从模拟获得的计算结果表明，虚拟网络的总容量可以同时最大限度地提高他们的收入，并为他们的用户提供更低的/有竞争力的频谱使用价格最大化。

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