상세 보기
초록
In this paper, we propose new demapping scheme for the 16-APSK modulation, which reduces the computational complexity of demapping process. Compared to existing soft demapping methods, which calculate a decision metric for each constellation point, and hard demapping, which need a detailed look-up table, the new technique needs a short lookup table and no decision metric is needed to be calculated, thus reducing the complexity. The BER performance simulations reveal that this simplified demapping scheme does not cause any penalty on performance and retains same BER as those of existing techniques.
키워드
16-APSK; Demapping and AWGN channel; DVB; Computational complexity; Computer graphics; Decision tables; Digital circuits; Gaussian noise (electronic); Information technology; Multimedia systems; Table lookup; White noise; 16-APSK; BER performances; Constellation points; Decision metric; Demapping and AWGN channel; Digital Video Broadcasting; DVB; Look-up tables; New techniques; Soft demapping; Modulation
- 제목
- A new demapping technique for 16-APSK modulation for digital video broadcasting in AWGN channel
- 저자
- Ali, Pervaiz; Hussain, Farhan; Jeong, Jechang
- 발행일
- 2008-08
- 유형
- Conference Paper
- 저널명
- Proceedings - 3rd International Conference on Convergence and Hybrid Information Technology, ICCIT 2008
- 권
- 2
- 페이지
- 9 ~ 12