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Abstract This paper presents a method of search for the optimal antenna deployment for use in spatial localization systems based on the radio frequency identification technology (RFID). It involves minimizing the average error of a combinational localization method consisted of a trilateration algorithm, fingerprinting algorithm, and an intersectional algorithm. During the computational experiment we found the optimal solution among several antenna deployment patterns for a square localization field. The solution is a grid pattern with antenna interrogation zones oriented towards the field center. References Wang C. S. Goal-programming-driven genetic algorithm model for wireless access point deployment optimization / C. S. Wang, C. T. Chang // Mathematical problems in engineering. – 2012. – Vol. 2012. – P. 1–14. 2. Tak S. Modeling and performance study of AP placement framework for indoor location-awareness and network performance / S. Tak, T. Kim, D. Kim, Y. Kim // 8th International conference on ubiquitous information management and communication. Siem Reap, 9–11 January 2014 : proceedings. – Siem Reap, 2014. – P. 1–8. 3. Botero O. RFID network topology design based on Genetic Algorithms / O. Botero, H. Chaouchi // 2011 IEEE International conference on RFID-technologies and applications (RFID-TA). Sitges, 15–16 September 2011 : proceedings. – Sitges, 2011. – P. 300–305. 4. Fang S. H. A novel access point placement approach for WLAN-based location systems / S. H. Fang, T. N. Lin // 2010 IEEE Wireless communications and networking conference (WCNC), Sydney, 18–21 April 2010 : proceedings. – Sydney, 2010. – P. 1–4. 5. Ji Y. Optimal sniffers deployment on wireless indoor localization / Y. Ji, S. Biaz, S. Wu, B. Qi // 16th International conference on computer communications and networks, 2007. ICCCN 2007, Honolulu, 13–16 August 2007 : proceedings. – Honolulu, 2007. – P. 251–256. 6. Farkas K. Optimization of Wi-Fi access point placement for indoor localization / K. Farkas, A. Huszak, G. Godor // Informatics & IT today. – 2013. – Vol. 1, No. 1. – P. 28–33. 7. Battiti R. Optimal wireless access point placement for locationdependent services / R. Battiti, M. Brunato, A. Delai // Information engineering and computer science. – 2003. – 12 p.

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