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독립적인 MCS 레벨 선택 방식이 적용된 AMC-MIMO 결합 시스템의 성능 개선
김철성 ( Intae Hwang ),황인태 ( Kwang-wook Choi ),최광욱 ( Sang-jin Ryoo ),류상진 ( Kyung-hwan Lee ),이경환 ( Cheolwoo You ),유철우 ( Dae-ki Hong ),홍대기 ( Mingoo Kang ),강민구 ( Cheol-sung Kim ) 한국인터넷정보학회 2007 인터넷정보학회논문지 Vol.8 No.1
In this paper, we propose and observe a system that adopts Common-MCS (Modulation and Coding Scheme) level over all layer and Independent-MCS level for each layer in the combined AMC-V-BLAST (Adaptive Modulation and Coding-Vertical-Bell-lab Layered Space-Time) system. Also, comparing with the combined system using Common-MCS level, we observe throughput performance improvement in case of Independent-MCS level. As a result of simulation, Independent-MCS level case adapts modulation and coding scheme for maximum throughput to each channel condition in separate layer, resulting in improved throughput compared to Common-MCS level case. Especially, the results show that the combined AMC-V-BLAST system with Independent-MCS level achieves a gain of 700kbps in 7~9dB SNR (Signal-to-Noise Ratio) range against using Common-MCS level. In addition, the combined AMC-V-BLAST system using MMSEnulling method with receive diversity is verified that the difference of throughput between Independent MCS level system and common MCS level system in 7dB~9dB SNR is about 350kbps more or less.
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원격 비접촉식 목표 추적형 생체신호측정시스템에 관한 연구
최광욱,김철성,양철승,이정기,Choi, Kwang-Wook,Kim, Cheol-Sung,Yang, Chul-Seung,Lee, Jeong-Gi 한국정보통신학회 2014 한국정보통신학회논문지 Vol.18 No.9
As Single households increases for reason of communication development, extending human life, there are many problems occuring all over the world. In order to solve this problem with an invasion of privacy and manintain a healthy life, this paper suggest non-contact type bio-signal measurement system using IR-Radar, displacement sensor and Pan-Tilt system. The proposed system can increse the distance of measured respiration from 1m to over 8m, which is comprised of two IR-Radar for location tracking, one displacement sensor for non-contact type bio-signal measurement and one stepping motor drive system. The proposed system is verified through experiments and were confirmed the possibility.
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논문 : MIMO 시스템에서 독립적인 MCS레벨 선택기법을 적용한 적응변조 및 부호화 기법의 성능개선
류상진 ( Sang Jin Ryoo ),최광욱 ( Kwang Wook Choi ),이경환 ( Kyung Hwan Lee ),이경원 ( Kyoung Won Lee ),정태진 ( Tae Jin Jung ),김대진 ( Dae Jin Kim ),황인태 ( In Tae Hwang ),김철성 ( Cheol Sung Kim ) 전남대학교 전자통신기술연구소 2006 전자통신기술논문지 Vol.9 No.1
In this paper, we propose and observe a system that adopts Independent MCS (Modulation and Coding Scheme) level for each layer in the combined AMC-V-BLAST (Adaptive Modulation and Coding-Vertical-Bell-lab Layered Space-Time) system. Also, comparing with the combined system using Common MCS level, we observe how much throughput performance is improved. As a result of simulation, Independent MCS level case adapts modulation and coding scheme for maximum throughput to each channel condition in separate layer, resulting in improved throughput compared to Common MCS level case. Especially, the results show that the combined AMC-V-BLAST system with Independent MCS level achieves a gain of 700kbps in 7-9dB SNR (Signal-to-Noise Ratio) range.
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