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학술대회 An Efficient Detection Method for Unknown Wireless Devices using SDR Receivers
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남홍순, 김대영, 박종원
International Conference on Advanced Communication Technology (ICACT) 2016, pp.46-49
15MC1900, 위험기상 감시 및 예측 향상을 위한 라디오존데 및 고층기상관측 자동화 시스템 개발, 남홍순
In this paper, we describe an efficient detection method for unknown wireless devices using software defined radio (SDR) receivers, which is to estimate the position of unknown devices and their transmission power by sensing carrier frequency and measuring the received signal strengths (RSSs). RSS based positioning techniques are attractive for their low implementation complexity, but they are very sensitive to the path loss exponent in field environment. Most RSS based techniques calculate the position and transmission power of unknown devices assuming that the value of the path loss exponent is known before. However, the position estimation accuracy largely depends on the discrepancy of the path loss exponent. To improve the accuracy, the proposed method introduces a new process for the path loss exponent estimation when calculating the position and transmission power of unknown devices. The simulation results show that the proposed method has better position estimation accuracy compared with existing ones.
path loss exponent, Position estimation, RSS, SDR, transmission power estimation
KSP 제안 키워드
Carrier frequency, Detection Method, Estimation accuracy, Field Environment, Implementation complexity, Position Estimation, Positioning technique, Software Defined Radio(SDR), Wireless devices, path-loss exponent(PLE), power estimation