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- W2047508746 abstract "Cong Shen과 Micael P. Fitz에 의해 제안된 OSO(opportunistic spatial orthogonalization)는 주 사용자가 모든 라이선스 주파수 대역을 점유하고 있는 동안에 부 사용자들이 그 주파수 대역을 동시에 사용할 수 있도록 하는 기법이다. 본 논문에서는 single-input multi-output system을 기반으로 하여, 주 사용자의 송신 전략을 유지하며 주 사용자의 송신기에서 활성 부 사용자의 수신기로 가는 간섭을 고려한 활성 부 사용자 선택 알고리즘을 소개한다. 제안한 알고리즘은 주 사용자에게 최소한의 전송 용량(throughput)을 보장하며 기존 OSO 방법보다 더 높은 성능을 보인다. 우리는 모의실험을 통해 여러 제약 조건 하에서 제안한 알고리즘의 성능을 검증한다. The opportunistic spatial orthogonalization (OSO) scheme, proposed by Cong Shen and Michael P. Fitz, allows the existence of secondary users during the period in which the primary user is occupying all licensed bands. This paper introduces an active secondary user selection algorithm which mitigates the interference from the primary user transmitter to the secondary user receiver based on single-input multi-output system without altering a primary user's transmission strategy. A proposed algorithm guarantees the minimum average throughput of the primary user and overcomes the average sum throughput of a conventional OSO. We have numerically analyzed the average throughput under various constraints." @default.
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- W2047508746 date "2011-11-30" @default.
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- W2047508746 title "Active Secondary User Selection Algorithm of Opportunistic Spatial Orthogonalization Considering Interference by a Primary User" @default.
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- W2047508746 doi "https://doi.org/10.7840/kics.2011.36a.11.892" @default.
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