Abstract
Beamforming is one of the most important technologies for wireless communication systems. A beamforming antenna system can control the radiation beam pattern and thus can reduce power consumption, compared with an omni-direction antenna system. In general, the digital beamforming technology requires a complex control system. However, a digital RDA (retro-directive array) antenna system has very small calculation load and its configuration is quite simple as it transmits to a receiving direction without prior information, and simply needs to estimate the phase from an incident. Thus, a RDA antenna system can reduce the system complexity and power consumption, and improve system performance. In this paper, we describe the structure of a digital RDA system and investigate the beam tracking performance of a digital RDA system. It is shown through simulation results that a digital RDA system can effectively improve the beam tracking performance when a target receiver is moving. The mean beam tracking error can reach 1.9° when the SNR is 10 dB and 0.6° when the SNR is 20 dB.
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Acknowledgment
This work is a result of the study on the “Leaders in Industry-university Cooperation +” Project, supported by the Ministry of Education and National Research Foundation of Korea. Also, this work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (Ministry of Education) (No. 2016R1D1A1B01008046).
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© 2019 ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
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Kim, M., Gu, T., Ryu, HG. (2019). Design and Mobile Tracking Performance of a Retro-Directive Array (RDA) Antenna System. In: Zheng, J., Li, C., Chong, P., Meng, W., Yan, F. (eds) Ad Hoc Networks. ADHOCNETS 2019. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 306. Springer, Cham. https://doi.org/10.1007/978-3-030-37262-0_19
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DOI: https://doi.org/10.1007/978-3-030-37262-0_19
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