Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
권호 표지
DOI QR코드

DOI QR Code

Phase Noise Spectrum Distribution Analysis for Next-generation VSAT Satellite System

차세대 VSAT 위성통신시스템의 위상잡음 스펙트럼 분포 해석

  • Kim, Young-wan (IT Convergence and Communication Engineering Major, Kunsan National University)
  • Received : 2016.07.27
  • Accepted : 2016.08.05
  • Published : 2016.10.31
Download PDF
⟨ Previous Next ⟩

Abstract

Phase noise spectrum distributions of signal generators for next-generation VSAT satellite system based on DVB-RCS2 were analyzed in this paper. The forward link of VSAT system utilizes the APSK higher-order modulation methods based on the DVB-S2 ACM, the modulation methods of the return link utilizes the higher-order PSK and QAM based on the DVB-RCS2. In digital satellite system using the higher-order modulation techniques, the phase noise have an effect on transmission performance, the transmission performance is dominantly degraded by the phase noise of signal generators in the transmission system. The phase noise spectrum distribution of signal generators are analyzed by considering the ACM conditions that adopts the modulation techniques and data rates due to satellite transmission environment. The proper phase noise spectrum distribution for next-generation VSAT system based on DVB-RCS2 are proposed from the analyzed phase noise spectrum characteristics.

본 논문에서는 차세대 위성통신 규격인 DVB-RCS2 기반 VSAT 단말 시스템의 송수신부 위상잡음 스펙트럼 분포 특성을 분석한다. VSAT 순방향 링크는 DVB-S2 ACM 기반 APSK 고차 전송모드를 사용하며, 역방향 링크는 DVB-RCS2 기반 PSK 및 QAM 계열의 고차 전송 모드를 사용한다. 고차 전송 모드를 사용함에 따라 위상잡음에 의한 영향이 나타나며, 위성전송시스템 신호발생부의 위상잡음 특성에 따라 전송 성능의 열화가 지배적으로 나타난다. 위성전송 환경에 따라 가변적으로 전송 데이터 율와 전송 모드를 가변하는 전송방식을 고려하여 요구 위상잡음 특성을 분석하고 차세대 VSAT 전송 파라미터를 수용하는 전송시스템 신호발생부의 위상잡음 특성을 제시한다.

Keywords

References

  1. Digital Video Broadcasting (DVB), "Digital Video Broadcasting(DVB); Second generation," ETSI EN 302 307, June 2004.
  2. D. H. Wang and D. G. Oh, "A Study for the Next-generation Satellite Communication System Design and Modem Functional Verification based on DVB-RCS2," Journal of Satellite, Information and Communications, vol. 10, no. 3, pp. 62-67, July 2015.
  3. P. Y. Wang, M. C. Chou, et al, "A Ku-band low-phase-noise transformer coupled VCO for satellite communications," in 2016 IEEE International Symposium on Radio-Frequency Integration Technology, pp. 1-3, September 2016.
  4. Y. F. Wang and J. H. Lee, "A Simple Phase Noise Suppression Scheme for Massive MIMO Uplink Systems," IEEE Trans. on Vehicular Technology, vol. PP, no. 99, pp. 1-12, September 2016.
  5. Digital Video Broadcasting (DVB), Second Generation DVB Interactive Satellite System (DVB-RCS2) Part2: Lower Layers for Satellite standard, ETSI EN 301 545-2.
  6. D. B. Leeson, "Simple Model of Feedback Oscillator Noise Spectrum," in Proc. of the IEEE, pp. 329-330, Feb. 1966.
  7. Y. W. Kim and J. D. Yu, "Phase Noise Model of Single Loop Frequency Synthesizer," IEEE Transactions on Broadcasting, vol. 54 , no. 1, pp. 112-119, Feb. 2008. https://doi.org/10.1109/TBC.2007.913309