Journal of the Institute of Electronics and Information Engineers (전자공학회논문지)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Design and Performance Analysis of Hybrid Receiver based on System Level Simulation in Backhaul System

백홀 시스템에서 시스템 레벨 시뮬레이션 기반 하이브리드 수신기 설계 및 성능 분석

  • Moon, Sangmi (School of Electronics & Computer Engineering Chonnam National University) ;
  • Choe, Hun (School of Electronics & Computer Engineering Chonnam National University) ;
  • Chu, Myeonghun (School of Electronics & Computer Engineering Chonnam National University) ;
  • Kim, Hanjong (School of Electrical, Electronics & Communication Engineering, Korea University of Technology and Education) ;
  • Hwang, Intae (School of Electronics & Computer Engineering Chonnam National University)
  • 문상미 (전남대학교 전자컴퓨터공학과) ;
  • 최훈 (전남대학교 전자컴퓨터공학과) ;
  • 추명훈 (전남대학교 전자컴퓨터공학과) ;
  • 김한종 (한국기술교육대학 정보기술공학부) ;
  • 황인태 (전남대학교 전자컴퓨터공학과)
  • Received : 2015.02.27
  • Accepted : 2015.04.27
  • Published : 2015.05.25
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Abstract

The advanced receiver which can manage inter-cell interference is required to cope with the explosively increasing mobile data traffic. 3rd Generation Partnership Project (3GPP) has discussed network assisted interference cancellation and suppression (NAICS) to improve signal-to-noise-plus-interference ratio (SINR) and receiver performance by suppression or cancellation of interference signal from inter-cells. In this paper, we propose the novel hybrid receiver Full Suppression Cancellation (FSC) to reduce the interference from neighbor cell in backhaul system. The proposed receiver can suppress and cancel the interference by combining Interference Rejection Combining (IRC) with Successive Interference Cancellation (SIC). We perform the system level simulation based on 20MHz bandwidth of 3GPP LTE-Advanced system. Simulation results show that the proposed receiver can improve error rate and throughput of conventional system.

폭발적으로 증가하고 있는 모바일 데이터 트래픽을 수용하기 위하여 셀 간 간섭을 제어할 수 있는 향상된 수신기에 대한 연구가 필요하다. 이를 위해 3GPP(3rd Generation Partnership Project) 에서는 인접 셀의 간섭 신호를 억제 및 제거하여 수신기의 SINR(Signal-to-Noise-plus-Interference Ratio)을 향상시켜 수신 성능을 올리는 NAICS(Network Assisted Interference Cancellation and Suppression)가 표준에서 논의되고 있다. 본 논문에서는 인접 셀로부터 간섭의 영향을 줄이기 위하여 새로운 하이브리드 수신기 FSC(Full Suppression Cancellation)를 제안한다. 제안한 수신기는 IRC(Interference Rejection Combining)와 SIC(Successive Interference Cancellation)를 결합하여 간섭을 억제 및 제거 할 수 있다. 시스템 레벨 시뮬레이션은 3GPP LTE-Advanced 시스템의 20MHz 대역을 기반으로 이루어 졌으며, 시뮬레이션 결과 제안한 수신기를 통해 기존 수신기보다 SINR, 전송률 및 스펙트럼 효율 측면에서 성능 향상을 가져다주는 것을 확인하였다.

Keywords

References

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