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Low Latency Encoding Algorithm for Duo-Binary Turbo Codes with Tail Biting Trellises
박숙민(Sook Min Park),곽재영(Jaeyoung Kwak),이귀로(Kwyro Lee) 대한전자공학회 2009 電子工學會論文誌-SC (System and control) Vol.46 No.2
본 논문은 다중 입력을 가진 터보 코드 구조에 대한 연구로서 tail-biting 기법에서 효율적으로 Latency를 줄이는 터보 부호 알고리즘 및 하드웨어를 제안하였다. Mobile WiMAX 및 DVB-RCS 등에 적용된 이중 입력 터보 부호기의 고유 특성을 이용, 병렬 처리 하드웨어로 구현한 결과 tail-biting 기법을 위해 필요한 Latency를 기존 대비 약 47%로 줄이는 동시에 파워 소모량도 감소를 시켰다. The low latency encoder for high data rate duo-binary turbo codes with tail biting trellises is considered. Encoder hardware architecture is proposed using inherent encoding property of duo-binary turbo codes. And we showed that half of execution time as well as the energy can be reduced with the proposed architecture.
Low Latency Encoding Algorithm for Duo-Binary Turbo Codes with Tall Biting Trellises
박숙민(Sook Min Park),곽재영(Jaeyoung Kwak),이귀로(Kwyro Lee) 대한전기학회 2008 대한전기학회 학술대회 논문집 Vol.2008 No.10
The low latency encoder for high data rate duo-binary turbo codes with tail biting trellises is considered. Encoder hardware architecture is proposed using inherent encoding property of duo-binary turbo codes. And we showed that half of execution time as well as the energy can be reduced with the proposed architecture.
고종수(Jong Soo Ko),김규현(Kyu Hyun Kim),이창열(Chang Yeol Lee),조영호(Young-Ho Cho),이귀로(Kwyro Lee),곽병만(Byung Man Kwak),박관흠(Kwanhum Park) 한국자동차공학회 1995 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1995 No.6_2
A silicon microaccelerometer is designed and fabricated using silicon epitaxial layers for automotive electronic airbag applications. A cantilever structure is chosen for high sensitivity and a piezoresistive detection method is adopted for circuit simplicity and low cost. An optimum design is used to find optimum microstructure sizes for maximum sensitivity subject to performance requirements and design constraints on natural frequency, damping ratio, maximum allowable stress and microfabrication limitations. The microaccelerometer is fabricated by micromachining processing steps, composed of material-selective and orientation-dependent chemical etching techniques. Fabricated prototype shows a sensitivity of 88.6μV/g within a resonant frequency of 1.75kHz. Estimated performance of the microaccelerometer is compared with measured one. Discrepancy between the theoretical values and the experimental values is discussed together with possible sources of the errors.<br/>