Decoupled UL/DL User Association in Wireless-Powered HetNets With Full-Duplex Small Cells
Decoupled UL/DL User Association in Wireless-Powered HetNets With Full-Duplex Small Cells
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DOI：
10.1109/tvt.2023.3282919
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发表时间：
2023-11
影响因子：
6.8
通讯作者：
Sepideh Haghgoy;M. Mohammadi;Z. Mobini;Kai‐Kit Wong
中科院分区：
文献类型：
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作者：
Sepideh Haghgoy;M. Mohammadi;Z. Mobini;Kai‐Kit Wong
在本文中，我们提出了两个下行链路（DL）-uplink（ul）解耦（Dude）用户关联方案（在无线供电的全双制（FD）异质网络（HETNETS）中。我们考虑一个两层HETNET，其中包括半双链（HD）大型多型甲壳虫基础站（MBSS）和双 - 安坦nna FD小细胞基站（SBSS），以支持FD用户设备（UES）的UL和DL传播。每个FD UE首先与一个MBS/SBS相关联，基于平均接收功率（MMP）方案或最大接收功率（MRP）以收获能量。在连续数据传输阶段，UES选择从与能源收集阶段相同的MBS/SBS接收DL流量，并通过相同的/另一个SBS发送UL流量。利用随机几何形状的工具，我们开发了一个分析框架，以分析拟议的Dude用户协会方案的UL和DL覆盖率概率的平均收获能量并得出表达式。我们的结果表明，在无线供电的FD Hetnet中，SBS密度的最佳值，在该HETNET中，DL和UL覆盖率概率均最大化。此外，通过应用MMPA和MRPA方案，带有Dude的无线供电FD Hetnet在具有DL/UL偶联用户关联方案的FD HETNET上，可达到高达138.78％和83.37％的能源效率增长，分别没有无线功率传递。
In this article, we propose two downlink (DL)-uplink (UL) decoupled (DUDe) user association schemes in wireless-powered full-duplex (FD) heterogeneous networks (HetNets). We consider a two-tier HetNet comprising of half-duplex (HD) massive multi-antenna macrocell base stations (MBSs) and dual-antenna FD small cell base stations (SBSs) to support UL and DL transmissions of FD user equipments (UEs). Each FD UE is first associated to one MBS/SBS, based on the mean maximum received power (MMP) scheme or maximum received power (MRP) to harvest energy. During the consecutive data transmission phase, UEs choose to receive DL traffic from the same MBSs/SBSs as that associated with during energy harvesting phase, and send UL traffic through the same/another SBS. Leveraging tools from the stochastic geometry, we develop an analytical framework to analyze the average harvested energy and derive expressions for the UL and DL coverage probabilities of the proposed DUDe user association schemes. Our results show that there is an optimal value for the SBS density in the wireless-powered FD HetNets, at which both DL and UL coverage probabilities are maximized. Moreover, by applying MMPA and MRPA scheme, wireless-powered FD HetNets with DUDe achieves up to 138.78% and 83.37% energy efficiency gain over the FD HetNets with DL/UL coupled user association scheme and without wireless power transfer, respectively.