QoS-Aware D2D Cellular Networks With Spatial Spectrum Sensing: A Stochastic Geometry View
QoS-Aware D2D Cellular Networks With Spatial Spectrum Sensing: A Stochastic Geometry View
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DOI：
10.1109/tcomm.2018.2889246
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发表时间：
2019-05
影响因子：
8.3
通讯作者：
Hao Chen;Lingjia Liu;Harpreet S. Dhillon;Y. Yi
中科院分区：
文献类型：
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作者：
Hao Chen;Lingjia Liu;Harpreet S. Dhillon;Y. Yi
频谱接入和干扰管理是设备到设备（D2D）蜂窝网络中最具挑战性的问题之一。为了解决这些问题，本文引入了用于D2D蜂窝网络的空间频谱感测（SSS），以促进D2D用户的蜂窝频谱共享，同时为蜂窝用户提供服务质量保证。为了评估所提出的方案的性能，我们采用随机几何方法，其中基站和D2D设备的位置被建模为独立的泊松点过程（PPP）。假设活动蜂窝发射机的位置形成另一个独立的PPP，我们描述了在蜂窝用户中断概率约束下的D2D网络的区域频谱效率。SSS的使用禁止活动蜂窝用户周围的D2D传输，因为活动D2D发射机的位置被建模为由活动蜂窝用户位置的PPP驱动的泊松洞过程。我们的分析仔细考虑了活动蜂窝用户和活动D2D设备之间的这种空间分离。大量的仿真和数值结果验证了我们的分析，并展示了基于SSS的D2D蜂窝网络的优势。
Spectrum access and interference management are amongst the most challenging issues in device-to-device (D2D) cellular networks. In order to address these issues, this paper introduces spatial spectrum sensing (SSS) for D2D cellular networks to facilitate cellular spectrum sharing by D2D users while providing a quality of service guarantee for cellular users. In order to assess the performance of the proposed scheme, we adopt a stochastic geometry approach in which the locations of base stations and D2D devices are modeled as independent Poisson point processes (PPPs). Assuming that the locations of the active cellular transmitters form another independent PPP, we characterize the area spectral efficiency of D2D networks under cellular users’ outage probability constraint. The use of SSS prohibits D2D transmissions around the active cellular users because of which the locations of the active D2D transmitters are modeled as a Poisson hole process driven by the PPP of active cellular user locations. Our analysis carefully accounts for this spatial separation between active cellular users and active D2D devices. Extensive simulation and numerical results are presented to verify our analysis and demonstrate the advantages of SSS-based D2D cellular networks.