사무실 환경에서 초광대역 채널의 통계학적 특성모델

Abstract

In this paper, we present the statistical characterization of ultra wideband (UWB) channel of office environments in frequency domain. The 23,000 channel transfer functions of 46 transmitter-receiver location pairs are obtained using the measurement system based on frequency sweep technique. From the measured data, path loss exponent variation to the sub-frequency band is firstly reported. Then, distributions of received signals are analyzed considering the propagation environments and existence of line-of-sight (LOS). Finally, the statistical properties of received signal powers of frequency tones are reported. For LOS cases, as the separation between transmitter and receiver increases, the standard deviation of signal powers of the received frequency tones increases and probability, the received signal powers are located within specific range from the received power mean values, decreases.