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J. KIMS Technol > Volume 17(5); 2014 > Article
Journal of the Korea Institute of Military Science and Technology 2014;17(5):643-653.
DOI: https://doi.org/10.9766/KIMST.2014.17.5.643   
Design and Experiments Analysis of MIMO Communication System for Ground Unmanned Systems
Jisang You, Joonsung Choi, Hongku Kang, Incheol Baek, Dojong Kim
The 5th Research and Development Institute, Agency for Defense Development
지상 무인체계용 다중입출력 통신 시스템 설계 및 성능시험 분석
유지상, 최준성, 강홍구, 백인철, 김도종
국방과학연구소 제5기술연구본부
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 $2{ imes}2$ STBC diversity.
Key Words: OFDMA-TDD, Multiple Input Multiple Output, Reception Sensitivity, Signal to Noise Ratio


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