적응형 위성통신 시스템 설계를 위한 동적 강우 감쇠 모델
A Dynamic Rain Attenuation Model for Adaptive Satellite Communication Systems
- Resource Type
- Article
Text
- Authors
- 장매향; 김수영; 백정기; Meixiang Zhang; Sooyoung Kim; Jeong-Ki Pack
- Source
- 한국위성정보통신학회논문지, 06/30/2011, Vol. 6, Issue 1, p. 12-18
- Subject
- rain attenuation
rain fading
adaptive transmission
time-series generator
Markov chain.
- Language
- 한국어(KOR)
- ISSN
- 2384-3853
Signal fading due to rain is one of the most significant factors degrading link quality in satellite communication systems. Adaptive transmission is considered to be the most efficient means to countermeasure the rain attenuation. In order to develop and design a good adaptive transmission system, we need a dynamic rain attenuation model which can synthesize time series of rain attenuation. In this paper, we present a modeling technique for dynamic rain attenuation using a Markov process. We derive statistical fading properties of the rain attenuation data measured in second time interval and define four states in the Markov process. We synthesize the rain attenuation data using the 4-state Markov process, and compare statistical properties of the simulated data to those of the measured data.