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

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Recent Study on Interference Management for Full-Duplex Cellular Systems

전이중 셀룰라 시스템의 간섭 제어에 관한 최근 연구 동향

  • Jeon, Sang-Woon (Andong National University, Department of Information and Communication Engineering)
  • Received : 2015.04.07
  • Accepted : 2015.06.09
  • Published : 2015.07.31
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Abstract

This review paper introduces recent results on interference management for full-duplex cellular systems. Interference management techniques for uplink-downlink cellular networks are frist introduced, which are closely related to those for full-duplex cellular systems. Self-interference suppression method for full-duplex radios and the corresponding modeling of full-duplex cellular systems are then explained. Even if self-interference is perfectly suppressed, there exists a new source of interference between full-duplex users for full-duplex cellular systems. Therefore, management of such user-to-user interference is of crucially importance to improve the capacity of full-duplex cellular systems. Recently, new interference management techniques for achieving the optimal sum degrees of freedom of full-duplex cellular systems have been proposed. In this review paper, these optimal interference management techniques are mainly introduced.

본 리뷰 논문은 전이중 (Full-Duplex) 셀룰라 시스템의 간섭 제어에 관한 최근 연구동향을 소개한다. 먼저 전이중 셀룰라 시스템과 밀접한 연관이 있는 상향링크-하향링크 공존 환경에서의 간섭 제어에 대해 간략히 소개한다. 다음으로 전이중 셀룰라 시스템의 자기간섭 제어 기법과 이를 통한 전이중 셀룰라 시스템의 이론적 모델에 대해 소개한다. 전이중 셀룰라 시스템의 경우 자기간섭을 완벽히 제거하더라고 사용자간 간섭이라는 새로운 간섭현상이 존재한다. 따라서 전이중 통신을 통해 망의 용량을 획기적으로 증대하기 위해서는 이러한 사용자간 간섭을 효율적으로 제어하여야 한다. 최근 전이중 셀룰라 시스템에서 망의 최적 자유도를 달성하는 새로운 간섭 제어 기법이 제안되었다. 본 리뷰 논문은 이러한 최적 간섭 제어 기법에 대해 중점적으로 소개하고자 한다.

Keywords

References

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