On the Performance of mmWave Networks Aided by Wirelessly Powered Relays

Abstract

Abstract-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 the coverage in mmWave networks. In this paper, we consider the WRs to be equipped with battery units that can store ambient RF energy from the 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 (SINR) 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. Furthermore, the coverage probability is also analyzed for the WRs residing both within and outside the bounded region.

Transceiver Design of Optimum Wirelessly Powered Full-Duplex MIMO IoT Devices

“…are given by (9) and 10, respectively. Now, introducing several auxiliary variables and applying the S-procedure [39] lemma, the problem for the MISO case can be expressed as (28), detailed steps of which are included in Appendix A. In 28 (42) and (43) in Appendix A respectively.…”

“…Analysis of the battery dynamics is beyond the scope of this paper. Interested readers can refer to[28],[29] for details on battery modelling.…”

Simultaneous Wireless Information and Power Transfer at 5G New Frequencies: Channel Measurement and Network Design

“…The performance of relay-aided mmWave massive MIMO system was analyzed in [27]. In the similar system, [28] investigated the energy-harvesting potential of mmWave based on the stochastic geometry theory. All works in [23]- [28] express that mmWave can be utilized for WPT, but it must be combined with multiple antennas.…”

“…In the similar system, [28] investigated the energy-harvesting potential of mmWave based on the stochastic geometry theory. All works in [23]- [28] express that mmWave can be utilized for WPT, but it must be combined with multiple antennas. Besides, the WPT through mmWave is more susceptible to environmental effects, such as the obstruction and rain attenuation.…”

“…Although the existing researches have promoted the development of SWIPT, there are still some open issues remained to be tackled. Firstly, all researches in [9]- [21], [23]- [28] only focus on the single-band system. However, as indicated in the 5G white paper on technology architecture [29], all-spectrum access involving LF and HF bands has been recommended as one of the 5G key technologies.…”