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학술대회 Co-Channel Interference Cancellation in OFDMA System
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저자
류관웅, 정준영, 임한재
발행일
202009
출처
Asia-Pacific Network Operations and Management Symposium (APNOMS) 2020, pp.255-258
DOI
https://dx.doi.org/10.23919/APNOMS50412.2020.9237030
협약과제
19HH7100, Edge Cloud 기반 가입자 근접형 원격 융합 전송 플랫폼 기술개발, 정준영
초록
This paper proposes a co-channel interference (CCI) reduction scheme for cell edge users in OFDM systems using same frequency. The proposed scheme includes a joint channel-estimation method with interpolated sliding window (JCE-ISW) and a joint detection with QRM-MLD based on the maximum interference selection cancellation (QRM-MLD-MIS C). The proposed method, which is a pilot-based channel estimation method, utilizes an interpolated sliding window method to reduce the influence of CCI on channel estimation. The proposed detection scheme is a joint detection with QRM-MLD-MISC. The simulation results show the performance improvement of the proposed method compared with that of conventional methods.
키워드
CCI reduction, JCE-ISE, QRM-MLD-MISC
KSP 제안 키워드
Cell-Edge, Channel estimation(CE), Conventional methods, Detection scheme, Estimation method, Interference cancellation, Joint detection, OFDM systems, Pilot-based channel estimation, QRM-MLD, Sliding window method