DOI: https://doi.org/10.15587/1729-4061.2017.106925

Development of a spatial method for the estimation of signal strenth at the input of the 802.11 standard receiver

Dmytro Mykhalevskiy

Abstract


We proposed a spatial method for the evaluation of signal strength at the input of the receiver for the 802.11x family of standards. For this purpose, an analysis was conducted of the basic energy characteristic for any wireless channel of the 802.11 standard and a model of the signal distribution was derived. The advantage of this method is the ease of implementation and the possibility to take into account a maximally possible number of destabilizing factors that can be relevant for a particular room.

Based on the experimental evaluation of spatial distribution of strength for a typical room and for a corner placement of access point, we received a universal mathematical model and permissible limits of its change.

It was established that the level of signal fluctuations indoors is affected by such basic independent components: reflected signals from the room surfaces, interference obstacles and noise. In the frequency range of 2.4 GHz for the 802.11 standard, there occurs a rather heterogeneous distribution of signals in the room with the creation of amplification and weakening regions with a difference of up to 10 dBm, and under the most difficult conditions – up to 25 dBm. It was also established that the heterogeneity of signal distribution increases proportionally to the number of reflective surfaces in a room, which is additionally enhanced by the presence of interference obstacles and noise

Keywords


a wireless channel of the 802.11 standard; signal strength distribution; multibeam wave propagation

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References


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GOST Style Citations


Rose, K. The internet of things: An overview [Text] / K. Rose, S. Eldridge, L. Chapin. – The Internet Society (ISOC), 2015. – 55 p.

Wescott, D. A. CWAP Certified Wireless Analysis Professional Official Study Guide: Exam PW0-270 [Text] / D. A. Wescott, D. D. Coleman, P. Mackenzie, B. Miller. – Wiley Technology Pub., 2011. – 696 p.

Semenko, A. I. Suchasnyi stan stvorennia bezprovidnykh telekomunikatsiynykh system [Text] / A. I. Semenko // Visn. Nats. un-tu "Lviv. politekhnika". – 2009. – Issue 645. – P. 56–67.

Chapre, Y. Received signal strength indicator and its analysis in a typical WLAN system (short paper) [Text] / Y. Chapre, P. Mohapatra, S. Jha, A. Seneviratne // 38th Annual IEEE Conference on Local Computer Networks. – 2013. doi: 10.1109/lcn.2013.6761255 

Jekabsons, G. An Analysis of Wi-Fi Based Indoor Positioning Accuracy [Text] / G. Jekabsons, V. Kairish, V. Zuravlyov // Scientific Journal of Riga Technical University. Computer Sciences. – 2011. – Vol. 44, Issue 1. doi: 10.2478/v10143-011-0031-4 

Shchekotov, M. Indoor Localization Method Based on Wi-Fi Trilateration Technique [Text] / M. Shchekotov // Proceeding of the 16th Conference of Fruct Association. – 2014. – P. 177–179.

Bobescu, B. Mobile Indoor Positioning Using Wi-Fi Localization [Text] / B. Bobescu, M. Alexandru // Review of the AirForce Academy. – 2015. – Issue 1 (28). – P. 119–122.

Soldo, I. Wi-Fi Parameter Measurements and Analysis [Text] / I. Soldo, K. Malaric // Proceedings of the 9th International Conference (Measurement 2013). – 2013. – P. 339–342.

Chrysikos, T. Site-specific Validation of Path Loss Models and Large-scale Fading Characterization for a Complex Urban Propagation Topology at 2.4 GHz [Text] / T. Chrysikos, S. Kotsopoulos // Proceedings of the International Multi Conference of Engineers and Computer Scientists. – 2013. – Vol. II. – P. 585–590.

Mykhalevskyi, D. V. Doslidzhennia potuzhnosti syhnalu pryimachiv standartu Wi-Fi [Text]: mater. mizh. nauk.-prakt. konf. / D. V. Mykhalevskyi // Aktual'nye problemy sovremennoy nauki i puti ih resheniya. – 2014. – P. 29–31.

Mykhalevskyi, D. V. Doslidzhennia peredachi informatsii v umovakh sumishchenoho ta susidnoho interferentsiinoho kanaliv dlia standartu 802.11n [Text] / D. V. Mykhalevskyi, V. V. Nomyrovska, O. M. Posternak // Vymiriuvalna ta obchysliuvalna tekhnika v tekhnolohichnykh protsesakh. – 2015. – Issue 2. – P. 155–159.

Perahia, E. Next Generation Wireless LANs: 802.11n and 802.11ac [Text] / E. Perahia, R. Stacey. – Cambridge University Press, 2013. – 478 p.

Mykhalevskiy, D. V. Evaluation of wireless information transmission channel settings of 802.11 wi-fi standard [Text] / D. V. Mykhalevskiy // Eastern-European Journal of Enterprise Technologies. – 2014. – Vol. 6, Issue 9 (72). – P. 22–25. doi: 10.15587/1729-4061.2014.31666 

Yakimov, A. N. Modelirovanie rasprostraneniya ehlektromagnitnyh voln v pomeshchenii s uchetom vliyaniya mestnyh predmetov [Text] / A. N. Yakimov, P. G. Andreev, V. V. Knyazeva // Zhurnal radioehlektroniki. – 2015. – Issue 2. – P. 1–14.

Kshishtof, V. Sistemy podvizhnoy radiosvyazi [Text] / V. Kshishtof. – Moscow: Goryachaya liniya-Telekom, 2006. – 536 p.

Gorodets'ka, O. S. Features of MIMO technology in 802.11 standard [Text] / O. S. Gorodets'ka, D. V. Mikhalevs'kiy // Scientific papers SWorld. – 2016. doi: 10.21893/2410-6720-2016-44-1-106 

Rani, S. A Novel Scheme for an Energy Efficient Internet of Things Based on Wireless Sensor Networks [Text] / S. Rani, R. Talwar, J. Malhotra, S. Ahmed, M. Sarkar, H. Song // Sensors. – 2015. – Vol. 15, Issue 22. – P. 28603–28626. doi: 10.3390/s151128603 

Afridi, M. A. Microstrip Patch Antenna − Designing at 2.4 GHz Frequency [Text] / M. A. Afridi // Biological and Chemical Research. – 2015. – Vol. 2015. – P. 128–132.

Mykhalevskiy, D. V. Investigation of sensitivity impact of receiver to effective data transmission rate [Text] / D. V. Mykhalevskiy // Proceeding of the 1th IEEE International Conference on Data Stream Mining & Processing. – Lviv, 2016. – P. 369–372.

Mykhalevskiy, D. V. An evaluation of the signal power distribution of a standard 802.11 transmitter in the room [Text] / D. V. Mykhalevskiy, M. D. Huz' // Sbornik nauchnikh trudov Sword. – 2015. – Vol. 3, Issue 1 (38). – P. 48–52.



 

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Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2018  First page: 164  Year: 2018  
doi: 10.1117/12.2501614





Copyright (c) 2017 Dmytro Mykhalevskiy

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ISSN (print) 1729-3774, ISSN (on-line) 1729-4061