원문정보
보안공학연구지원센터(IJSIP)
International Journal of Signal Processing, Image Processing and Pattern Recognition
Vol.9 No.3
2016.03
pp.1-10
피인용수 : 0건 (자료제공 : 네이버학술정보)
초록
영어
This paper investigates the performance of image transmission with unequal error protection (UEP) schemes based on irregular Low-Density Parity-Check (LDPC) codes. Firstly, the UEP is achieved by mapping different bits of the image bytes to different positions of LDPC codes, i.e. the more important bits in the image are mapped to the variable node with higher degrees in irregular LDPC codes, after the channel coding, we map the information bits into a power efficient QAM constellation and map the parity check bits into a spectral efficiency 16QAM constellation. Simulation results show that the UEP scheme is effective.
목차
Abstract
1. Introduction
2. System Model
2.1. Low-Density Parity-Check Codes
2.2. Principle of UEP
3. Simulation Results
4. Conclusion
Acknowledgment
References
1. Introduction
2. System Model
2.1. Low-Density Parity-Check Codes
2.2. Principle of UEP
3. Simulation Results
4. Conclusion
Acknowledgment
References
저자정보
참고문헌
자료제공 : 네이버학술정보