Wireless Powered Sensor Networks With Random Deployments
| Autor: | Chao Zhang, Guanghe Zhao |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Computer science
business.industry 010401 analytical chemistry Electrical engineering 020206 networking & telecommunications 02 engineering and technology Transmitter power output 01 natural sciences 0104 chemical sciences Key distribution in wireless sensor networks Transmission (telecommunications) Control and Systems Engineering Sensor node 0202 electrical engineering electronic engineering information engineering Mobile wireless sensor network Wireless Wireless power transfer Electrical and Electronic Engineering business Wireless sensor network Computer network |
| Zdroj: | IEEE Wireless Communications Letters. 6:218-221 |
| ISSN: | 2162-2345 2162-2337 |
| DOI: | 10.1109/lwc.2017.2662009 |
| Popis: | In this letter, wireless powered sensor networks with randomly deployed power beacons (PBs) and distributed antenna elements (DAEs) are investigated. The transmission duration is divided into two phases: 1) wireless power transfer (WPT) phase and 2) information transmission (IT) phase. In the WPT phase, the sensor nodes harvest energy from the radio frequency signals radiated by the PBs. Then, the sensor nodes use their harvested energy to transmit the measured and acquired data to the central processing server via the randomly deployed DAEs in the IT phase. After modeling the locations of PBs and DAEs as independent spatial point processes, in the case that the path-loss exponent of WPT equals to 4, we derive the outage performance of a typical sensor node and show that there exist outage error floors when individually increasing PB transmit power, density of PBs, or density of DAEs. Finally, simulation results verify our analysis and show that for a target outage probability the density of PBs should be far larger than that of DAEs. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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