ESPAR Antenna-Based WSN Node With DoA Estimation Capability
| Autor: | M. Rzymowski, Lukasz Kulas, Krzysztof Nyka, Mateusz Groth |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
General Computer Science
Computer science 02 engineering and technology 01 natural sciences Radiation pattern direction-of-arrival (DoA) wireless sensor network (WSN) received signal strength (RSS) 0202 electrical engineering electronic engineering information engineering Electronic engineering General Materials Science ComputerSystemsOrganization_SPECIAL-PURPOSEANDAPPLICATION-BASEDSYSTEMS Directional antenna Node (networking) 010401 analytical chemistry ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS General Engineering Direction of arrival 020206 networking & telecommunications electronically steerable parasitic array radiator (ESPAR) antenna Wireless sensor networks Direction-of-arrival estimation Antenna radiation patterns Directive antennas Estimation Switches Switching circuits Internet of Things (IoT) wireless sensor network (WSN) switched-beam antenna electronically steerable parasitic array radiator (ESPAR) antenna direction-of-arrival (DoA) received signal strength (RSS) 0104 chemical sciences Internet of Things (IoT) Microcontroller lcsh:Electrical engineering. Electronics. Nuclear engineering Antenna (radio) Transceiver Wireless sensor network switched-beam antenna lcsh:TK1-9971 |
| Zdroj: | IEEE Access, Vol 8, Pp 91435-91447 (2020) |
| ISSN: | 2169-3536 |
| Popis: | In this paper, we present a low-cost energy-efficient electronically steerable parasitic array radiator (ESPAR) antenna-based wireless sensor network (WSN) node designed for IEEE 802.15.4 standard that is capable of performing direction of arrival (DoA) estimation in real-life outdoor environments. To this end, we propose the WSN node architecture, design and realization that utilizes NXP JN5168 radio frequency (RF) wireless transceiver and a microcontroller integrated with ESPAR antenna beam-switching circuits. To incorporate DoA estimation capability into the developed single-board WSN node, power-pattern cross-correlation (PPCC) algorithm, that relies solely on received signal strength (RSS) values measured by the transceiver at the antenna output for every considered directional antenna radiation pattern, has been adapted and implemented in a simple microcontroller embedded within NXP JN5168 integrated circuit. Measurements conducted in an outdoor environment show that the proposed low-cost WSN node can successfully provide DoA estimation results, which may be used to enhance WSN capabilities in practical applications. The obtained root mean square (RMS) DoA estimation errors are 7.91°, 6.58° and 9.47° for distances between WSN nodes equal to 3m , 5m and 10m respectively. Acknowledgement:This paper is a result of the AFarCloud project (www.afarcloud.eu) which has received funding from the ECSEL Joint Undertaking (JU) under grant agreement No 783221. The JU receives support from the European Union’s Horizon 2020 research and innovation programme and Austria, Belgium, Czech Republic, Finland, Germany, Greece, Italy, Latvia, Norway, Poland, Portugal, Spain, Sweden. The document reflects only the authors' view and the Commission is not responsible for any use that may be made of the information it contains. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|