Ensuring a stable wireless communication in cyber-physical systems with moving objects
DOI:
https://doi.org/10.15587/2312-8372.2016.80784Keywords:
moving objects, stability of wireless communications, cyber-physical objects, computer components, Wi-Fi transmitting modulesAbstract
The data transmission process in cyber-physical system (CFS) with wireless communication channels between cyber-physical objects (CFO) is studied in the article. In the presence of obstacles (mechanical and electromagnetic),zero direct visibility or exceeding the allowable distance between CFO (Wi-Fi communication modules of unmanned vehicles – UMV – and/or mobile devices) that need to share data, it is necessary to take measures to restore broken communication line or to stabilization of the data transmission rate.
The method for regularly radio situation overriding in CFS coverage area is proposed. The stability of wireless communication is achieved by changing energy and frequency characteristics of the communication line between CFO, as well as through the use of intermediate CFO as the signal transmitters. An algorithm for performing the specified settings depending on the model of used cyber-physical components, the distance between CFO and the delay of time interval is described. The full-scale experiment in the field using real hardware and software and with the presence of electromagnetic interference has been recreated to verify the algorithm. It is shown that for certain set of initial parameters, reducing a Wi-Fi module maximum power by 50 % improves the quality of communication in almost 8 times.
Assessment of changes in the data transmission rate depending on the number of retransmissions is conducted. The stability performances of data transmission rate up to 90 %are improved by transition of communication line to another frequency range with less interference and introduction of signal retransmission function using intermediate CFO.
The direction of future research is dependent on trends in the market of construction materials for UMV and computer components with built-in Wi-Fi communication modules.
References
- Melnyk, A. (2016). Cyber-Physical Systems Multilayer Platform and Research Framework. Advanced of Cyber-Physical Systems, Vol. 1, № 1, 1‑6.
- Musiyenko, M., Zhuravska, I., Burlachenko, I., Denysov, O. (2016). The Principles of the Cyber-Physical Components' Organization Based on the Methods of the Multi-Agent Interaction of the Moving Objects. Advanced of Cyber-Physical Systems, Vol. 1, № 1, 51–60.
- Friese, L., Jenzen-Jones, N. R., Smallwood, М. (2016). Emerging Unmanned Threats: The use of commercially-available UAVs by armed non-state actors: Special Report № 2. Perth, Australia: Armament Research Services (ARES), 66. ISBN 978-0-9924624-7-5.
- Single Chip IEEE 802.11a/b/g/n MAC/Baseband/ Radio with Integrated Bluetooth® 4.0 + HS and FM Transceiver: Preliminary Data Sheet BCM4330. Available: http://linux-sunxi.org/images/0/05/4330-DS206-R.pdf. Last accessed: 15.09.2016.
- Gummadi, R., Wetherall, D., Greenstein, B., Seshan, S. (2007). Understanding and mitigating the impact of RF interference on 802.11 networks. Proceedings of the 2007 conference on Applications, technologies, architectures, and protocols for computer communications – SIGCOMM ’07. Association for Computing Machinery (ACM), 385–396. doi:10.1145/1282380.1282424
- RTL8192CU. Realtek. Available: http://www.realtek.com.tw/products/productsView.aspx?Conn=4&Langid=1&Level=5&PFid=48&ProdID=277. Last accessed: 15.09.2016.
- Espressif ESP8266, Qualcomm Atheros AR9331. Datasheet4u. Available: http://www.datasheet4u.com/share_search.php?sWord=ESP8266. Last accessed: 15.09.2016.
- Ralink RT3290…RT5350. Fast Datasheets. Available: http://datasheet-pdf.com/PDF/. Last accessed: 15.09.2016.
- Yatskiv, V. V. (2016). The theoretical basis for the creation and components’ structural organization of the wireless sensor networks with increased efficiency. Lviv: NU «Lvivska politechnika», 40.
- Mahanti, A., Carlsson, N., Williamson, C., Arlitt, M. (2010). Ambient Interference Effects in Wi-Fi Networks. NETWORKING 2010. Springer Science + Business Media, 160–173. doi:10.1007/978-3-642-12963-6_13
- Polynkin, А. V., Le, Kh. T. (2013). Investigation of Radio Communications Characteristics with Unmanned Aerial Vehicles. Izvestiya TulSU. Technical Sciences, Vol. 7, Part 2, 98–107.
- Musiyenko, M. P., Zhuravska, I. M., Kulakovska, I. V., Kulakovska, A. V. (2016, April). Simulation the behavior of robot sub-swarm in spatial corridors. 2016 IEEE 36th International Conference on Electronics and Nanotechnology (ELNANO). Institute of Electrical and Electronics Engineers (IEEE), 382–387. doi:10.1109/elnano.2016.7493090
- Troubleshoot Your Wi-Fi with InSSIDer. MetaGeek. Available: http://www.inssider.com/. Last accessed: 15.09.2016.
- Cisco Aironet 1130AG IEEE 802.11a/b/g. Access Point: Data Sheet. Available: http://www.cisco.com/c/en/us/products/collateral/wireless/aironet-1130-ag-series/product_data_sheet0900aecd801b9058.pdf. Last accessed: 15.09.2016.
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