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http://dx.doi.org/10.9766/KIMST.2014.17.5.643

Design and Experiments Analysis of MIMO Communication System for Ground Unmanned Systems  

You, Jisang (The 5th Research and Development Institute, Agency for Defense Development)
Choi, Joonsung (The 5th Research and Development Institute, Agency for Defense Development)
Kang, Hongku (The 5th Research and Development Institute, Agency for Defense Development)
Baek, Incheol (The 5th Research and Development Institute, Agency for Defense Development)
Kim, Dojong (The 5th Research and Development Institute, Agency for Defense Development)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.17, no.5, 2014 , pp. 643-653 More about this Journal
Abstract
High-capacity video, control and situation awareness data should be transmitted efficiently to control robots properly in the ground unmanned system, which requires the technology maximizing the communication range and the data transmission throughput. This technology is connected to the OFDMA(Orthogonal Frequency Division Multiple Access)-MIMO(Multiple Input Multiple Output) transmission technology under the limited bandwidth and transmission power. In this paper, we design MIMO communication system for ground unmanned systems, and investigate the data reception performance experimentally, comparing with SISO(Single Input Single Output) system. Experiment results show that the data reception performance of MIMO is significantly improved compared to that of SISO, e.g. 4dB gain of sensitivity and 5dB of SNR at the value MPR = 1, for the mobile stations with $2{\times}2$ STBC diversity.
Keywords
OFDMA-TDD; Multiple Input Multiple Output; Reception Sensitivity; Signal to Noise Ratio;
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