상세정보
학술대회
Carrier Frequency Effects on Propagation Characteristics in Rural Macro Environments
- 발행일
- 200908
- 출처
- International Conference on Communications and Networking in China (ChinaCom) 2009, pp.1050-1054
- 협약과제
- 09MR6400, IMT-Advanced 기반 광대역 무선채널 특성연구, 정현규
- 초록
- Based on the experimental results obtained from the extensive wideband MIMO channel measurements at 2.38, 3.705 and 5.25GHz in Line-Of-Sight (LOS) rural macro environments, the empirical Path Loss (PL) model is proposed for the IMT-Advanced systems. PL exponent, intercept, frequency dependent factor and standard deviation of Shadow Fading (SF) are obtained by using the Least Square (LS) method. It is found that the frequency dependent factor well reflects the measured PL at each carrier frequency. We investigate the frequency dependence of SF and also propose an autocorrelation function which can be modeled with Exponentially Decaying Wave (EDW) function. It is observed that the EDW function well represent the general characteristic of autocorrelation curves.
- 키워드
- Autocorrelation, Least square, Path loss, Shadow fading
- KSP 제안 키워드
- Carrier frequency, Frequency dependence, Frequency effect, IMT-Advanced, Least Squares(LS), Least square (LS) method, Line-Of-Sight(LOS), MIMO channel measurements, Path loss, Propagation characteristics, Standard deviation(STD)