On the Performance of mmWave Networks Aided by Wirelessly Powered Relays
On the Performance of mmWave Networks Aided by Wirelessly Powered Relays
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DOI：
10.1109/jstsp.2016.2610944
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发表时间：
2016-09
影响因子：
7.5
通讯作者：
S. Biswas;Satyanarayana Vuppala;T. Ratnarajah
中科院分区：
文献类型：
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作者：
S. Biswas;Satyanarayana Vuppala;T. Ratnarajah
我们调查的能量收集（EH）的室外毫米波（毫米波）网络的无线供电继电器（WR）的帮助下的潜力。由于传播特性的影响，例如阻塞，WR可以辅助毫米波网络中的覆盖。在本文中，我们认为WR配备有电池单元，可以存储来自毫米波源的环境射频能量。源和WR被建模为独立的齐次泊松点过程（PPPs）。利用随机几何的工具，我们研究了WR的EH潜力及其覆盖概率的基础上，可以收获的能量的量。为了成功接收和传输，WR中的电池必须存储足够的能量，而目的地接收的信号与干扰加噪声比高于一定的阈值水平。我们还分析了节点的隔离和网络的连通性概率考虑有界区域的WR。基于WR的这个有界区域，我们然后选择最佳WR将消息从源转发到目的地。总体而言，在仿真结果的帮助下，我们表明，对于10%的RF到DC转换效率，WR中收集的能量可以在毫米波网络中提供足够的覆盖概率。
We investigate the energy harvesting (EH) potential of an outdoor millimeter-wave (mmWave) network aided by wirelessly powered relays (WRs). Due to the effect of propagation characteristics, such as blockages, WRs can assist coverage in mmWave networks. In this paper, we consider WRs to be equipped with battery units that can store ambient radio frequency energy from mmWave sources. The sources and the WRs are modeled as independent homogeneous Poisson point processes (PPPs). Leveraging tools from stochastic geometry, we study the EH potential of the WRs and their coverage probability based on the amount of energy that can be harvested. To successfully receive and transmit, the batteries in the WRs have to store sufficient energy, while the received signal to interference plus noise ratio at the destination is above a certain threshold level. We also analyze the node isolation and network connectivity probabilities for the WRs considering a bounded region. Based on this bounded region of the WRs, we then select the best WR to forward the message from sources to the destination. Overall, with the help of simulation results, we show that for a RF-to-DC conversion efficiency of 10%, the energy harvested in WRs can provide sufficient coverage probability in a mmWave network.