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양재승,신태철,이문호 한국인터넷방송통신학회 2016 한국인터넷방송통신학회 논문지 Vol.16 No.1
공간다중화 방식을 사용하는 MIMO 시스템은 다이버시티 기법을 사용하는 MIMO 시스템과 비교할 때 높은 전송률을 달성하지만 다이버시티 이득이 낮아 데이터 전송 신뢰도를 높이기 위하여 MIMO 수신단에서 공간정보스트림을 분리해야한다. 본 논문에서는 격자부호에 의한 채널 용량 검출 기법, 사용자 3인인 간섭채널과 선형검출기법인 ZF(Zero Forcing)와 MMSE(Minimum Mean Square Error) 검파 기법을 비교했다. 이때 채널은 Diagonal 채널이 된다. 즉, Diagonal 채널은 로 역행렬이 element-wise inverse로 Jacket 행렬의 성질을 만족함을 확인했다. Compared to the MIMO system using the spatial multiplexing methods and the MIMO system using the diversity scheme achieved a high rate, but the lower the diversity gain to improve the data transmission reliability should separate the spatial stream at the MIMO receiver. In this paper, we compared Channel capacity detection methods with the Lattice code, the 3-user interference channel and linear channel interference detection methods ZF (Zero Forcing) and MMSE (Minimum Mean Square Error) detection methods. The channel is a Diagonal channel. In other words, Diagonal channel is confirmed by the inverse matrix satisfies the properties of Jacket are element-wise inverse to .
단순 엘레멘트 인버스를 이용한 DCT/DFT 하이브리드 알고리즘
이광재,박대철,이문호,신태철,진주,Lee, Kwang-Jae,Park, Dae-Chul,Lee, Moon-Ho,Sin, Tae-Chol,Chen, Zhu 한국통신학회 2007 韓國通信學會論文誌 Vol.32 No.6c
본 논문에서는 하이브리드 구조에 의한 DCT/DFT 행렬의 새로운 표현을 제시한다. 엘레멘트 인버스 소행렬 분해 알고리즘에 근거하여 DCT와 DFT가 동일한 반복 연산 패턴을 갖고 있음을 보이며, 몇몇 대각행렬을 이용한 하이브리드 구조를 개발한다. In this paper, we present new representation of DCT/DFT matrices via one hybrid architecture. Based on a element inverse matrix factorization algorithm, we show that the DCT and DFT have a same recursive computational pattern, and we can develop an hybrid architecture by using some diagonal matrices.
Holstein 종 유우의 1 산차와 2 산차가 산유량에 미치는 유전과 환경효과에 관한 연구
이정규,김준식,지설하,조윤연,박영일,신태철 한국축산학회 1984 한국축산학회지 Vol.26 No.7
The object of this study was to determine the genetic and environmental effects on milk yield and fat yield at first and second lactation in Holstein Friesian cows. The experimental animals for this study were 265 heads of Holstein cows born from 1971 to 1980 at the National Animal Breeding Institute. The statistical analysis were conducted by least-squares method. The results obtained are summarized as follows; 1. The over all mean of 305-day adjusted lactation traits was 5180.3±155.8 Kg for first lactation milk yield, 5128.0±164.9 Kg for second lactation milk yield, 186.8±5.6 Kg for first lactation fat yield, 182.5±6.2 Kg for second lactation fat yield on a mature equivalent basis. 2. The effect of sires was not significant for all traits included in this study. 3. The effect of birth year was significant for first lactation fat yield, and the cows born after 1979 produced 225.3±18.9 Kg. of fat. 4. The effect of season of birth was not significant for all waits examined in this study. 5. The effect of the location of the barn was not significant. 6. The effect of calving season was significant for first lactation milk yield and fat yield.
세 명의 다중 사용자 채널에서의 더티 페이퍼 전처리 코딩
이문호(MoonHo Lee),박주용(Ju Yong Park),신태철(TaeChol Shin) 大韓電子工學會 2012 電子工學會論文誌-TC (Telecommunications) Vol.49 No.2
In this paper, we design on nonliner 3 user Dirty Paper Precoding for MIMO adjacant interference signal cancellation based on 3 GPP LTE Release 10. In this paper, in order to reduce the inter-channel interference at the transmitted side, we propose the Dirty Paper Precoding scheme for 3-user MIMO wireless systems using LQ decomposition and Gram-Schmidt algorithm based in its orthonormal basis.