상세정보
학술대회
Upper Bounds on the Sum Capacity of the K-User Gaussian Interference Channel
- 저자
- 남준영
- 발행일
- 201506
- 출처
- International Symposium on Information Theory (ISIT) 2015, pp.211-215
- 협약과제
- 15MI2100, (통합)초연결 스마트 모바일 서비스를 위한 5G 이동통신 핵심기술개발, 정현규
- 초록
- The capacity region of the K-user Gaussian interference channel (GIC) is a long-standing open problem and even useful capacity outer bounds are little known in general. The significant progress on the degrees-of-freedom (DoF) capacity approximation for the K-user GIC has provided new insights into the problem of interest in the high signal-to-noise ratio (SNR) limit. However, such capacity approximation has been recently observed to reveal some limitations in predicting the capacity at realistic SNR. In this work, we derive new upper bounds on the capacity of the K-user GIC with complex channel gains to provide a more accurate and concrete perspective on capacity behaviors at finite SNR.
- KSP 제안 키워드
- Complex channel, Degrees of freedom(DOF), Gaussian Interference Channel, High signal-to-noise ratio, Open Problem, Signal noise ratio(SNR), Sum Capacity, Upper bounds, capacity approximation, capacity region