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정호영 한국정보전자통신기술학회 2019 한국정보전자통신기술학회논문지 Vol.12 No.1
In this paper, we propose a syndrome decoding scheme that can correct two errors for single error correcting Hamming codes within a code length. The decoding scheme proposed in this paper has the advantage of significantly improving the error rate performance compared to the decoder complexity by correcting multiple errors without substantially increasing the decoding complexity. It is suitable for applications in which the energy use of encoder/decoder is extremely limited and the low error rate performance is required, such as IoT communications and molecular communications. In order to verify the improvement of the error rate performance of the Hamming code with the proposed decoding scheme, we performed simulation on Hamming codes with short code length in the AWGN and BPSK modulation environments. As a result, compared with the conventional decoding method, the proposed decoding scheme showed performance improvement of about 1.1 ~ 1.2[dB] regardless of the code length of the Hamming code. 본 논문에서는 부호 길이 내에서 1개의 오류를 정정할 수 있는 해밍 부호(Hamming code)에 대해 2 개의 오류를 정정할 수 있는 신드롬 복호 기법을 제안하였다. 본 논문에서 제안한 복호 기법은 복호 복잡도를 거의 증가시키지 않으면서도 다중 오류를 정정함으로서 복호 복잡도 대비 오율 성능을 크게 개선할 수 있는 장점을 갖는다. 본 논문에서 제안한 복호 기법은 IoT 기기들 간의 통신이나 분자 통신과 같이 부/복호기에서 에너지의 사용이 극히 제한된 환경에서 부·복호기의 에너지 사용이 적으면서도 우수한 오율 성능이 요구되는 경우에 적합하다. 본 논문에서 제안한 복호 기법이 적용된 해밍 부호의 오율 성능이 개선되었음을 보이기 위해 BPSK 변조 방식과 AWGN 채널 환경에서 부호 길이가 짧은 다수의 해밍 부호에 대해 시뮬레이션을 수행하였으며, 수행 결과 해밍 부호의 부호 길이에 무관하게 제안한 복호 방식은 기존 복호 방식에 비해 약 1.1[dB] ~ 1.2[dB] 정도의 성능 개선을 확인할 수 있었다.
정호영 남서울대학교 공학연구센터 1999 공학연구 Vol.1 No.-
The subsystem providing time and synchronization is the most important component of the satellite communication such as GLONASS, GPS and its reliability has a great impact on overall performance. In this paper, an efficient coding scheme for the reliability of the timing subsystem is considered. The coding techniques used in GLONASS and NAVSTAR GPS are compared and analyzed with BER, the code rate and the complexity of the encoder/decoder.
Sons and Lovers에 나타난 Lawrence의 여성관
정호영 조선대학교 인문학연구소 1993 外國文化硏究 Vol.16 No.1
At the center of all D. H. Lawrence's works is his view on the relationship between man and woman. The view varies with his works and with his physical state. This paper is to study his view on the relationship between man and woman, especially his vew of women is Sons and Lovers. All through his life, Lawrence found it hard to resist the temptation of blaming women. Sons and Lovers is concerned with condemning Mrs. Morel for her stron hold on Paul. He is presented as a mere victim on whom her view of the world is repressively impressed. The story of Paul's unsuccessful relationship with Miriam is at the center of Sons and Lovers. Although Lawrence tries to be just in his assessment of the failure of the affair and indicates Paul's contribution to that failure, there is again a strong sense that both Miriam and his mother are to blame. There is an inescapable sense that what arouses Paul in his dealings with women is a pleasure in their suffering or physical ineptitude. Miriam is often described as clumsy in contrast to Paul's own competence in everyday domestic affairs. Paul considers himself a better woman than any of the actual women that he encounters. His critical attitude is literally deadly. Lawrence's own attachment to his mother meant that he was unable to relate to women as people. Lawrence's psychic history meant that in spite of his brilliant insights, he was unable to represent women as they are. The result is that, instead of examining the interactions of real men and women, what Lawrence actually wrote about was the relationship between man and a series of female stereotypes.