Monitoring for Rare Events in a Wireless Powered Communication mmWave Sensor Network

被引：2

作者：

Koutsioumpos, Michael ^{[1
]}

Zervas, Evangelos ^{[2
]}

Hadjiefthymiades, Efstathios ^{[1
]}

Merakos, Lazaros ^{[1
]}

机构：

[1] Natl & Kapodistrian Univ Athens, Dept Informat & Telecommun, Athens 15772, Greece

[2] Univ West Attica, Dept Elect & Elect Engn, Egaleo 12244, Greece

来源：

SENSORS | 2020年 / 20卷 / 12期

关键词：

wireless powered communication network (WPCN); energy beamforming; mmWave sensor network;

D O I：

10.3390/s20123341

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The use of a wireless sensor network to monitor an area of interest for possible hazardous events has become a common practice. The difficulty of replacing or recharging sensor batteries dictates the use of energy harvesting as a means to extend the network's lifetime. To this end, energy beamforming is used in a millimeter wave wireless power sensor network with randomly deployed nodes. A simple protocol is proposed that allows nodes to report their charging conditions in an effort to select efficient energy-beamforming strategies. Analytical expressions for the probability of successful information reception and successful reporting are provided for two benchmark schemes: the random and the circular energy-beamforming scheme. A Markov chain is used for the former to model the energy level of sensor nodes. Simple sector selection strategies are presented and their performance, in terms of delay and failure information delivery, is assessed through simulations.

引用

页码：1 / 26

页数：26

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