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Optimization of Channel Prediction Algorithm of Return Link ACM for Satellite Communication  

Kim, Hyun-Ho (충남대학교 전파공학과 RF 기술연구실)
Kim, Guk-Hyun (충남대학교 전파공학과 RF 기술연구실)
Ryu, Joon-Gyu (한국전자통신연구원 위성광대역방송통신연구실)
Hong, Sung-Yong (충남대학교 전파공학과 RF 기술연구실)
Publication Information
Journal of Satellite, Information and Communications / v.10, no.2, 2015 , pp. 19-23 More about this Journal
Abstract
In this paper, we present the return link ACM method to improve the link availability and system throughput for satellite communication service. Also, we describe the optimization of an algorithm for channel prediction using the LMS (Least Mean Square) adaptive filter and the MODCOD (Modulation & Code rate) decision. The simulation results show that the optimized filter taps and step-size of adaptive filter are 2 and 0.00026, respectively. And also confirms the required SNR margin for minimization of MODCOD decision error is 0.3dB.
Keywords
ACM; LMS; Adaptive filter; Satellite communication; VSAT;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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