The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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A Study on the Effect of Spectrum Sharing/Overlapping in a Heterogeneous OFDM System with Nonlinear High Power Amplifiers

비선형 고전력 증폭기를 가진 이종 직교주파수분할다중화 시스템에서 스펙트럼 공유/중복 효과에 대한 연구

  • Received : 2016.09.02
  • Accepted : 2016.11.17
  • Published : 2016.12.31
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Abstract

This paper presents the effect of spectrum sharing/overlapping in a heterogeneous OFDM system with nonlinear High Power Amplifier (HPA). According to the spectrum sharing strategies, the achievable rate performances are analyzed. In the non-orthogonal spectrum sharing, we address how the portion of the overlapped or overlaid spectrum band and the nonlinear properties of HPA affect the system performance and accordingly, propose the optimized spectrum sharing strategies.

이 논문은 OFDM (Orthogonal Frequency Division Multiplexing)기반의 이종 네트워크에서 주파수 공존 방식에 따른 시스템 전체의 전송률을 분석한다. 특히, 시간 축 또는 주파수 축 기준으로 직교한 형태의 공존 방식과 비직교 방식의 공존 방식 간의 성능을 비교하였으며, 비직교 공존 방식에서 이종 네트워크의 주파수 공유 또는 겹침(overlapping)이 전체 전송률에 미치는 영향을 분석하였다. 또한 실제 구현 환경을 고려하기 위해 송신단에 HPA(High Power Amplifier)의 nonlinear effect를 추가하여 이 HPA 파라미터에 따른 성능 분석을 하였으며 이에 따른 최적화된 이종 네트워크의 주파수 공존 전략을 제시하였다.

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References

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