Title :
Iterative demodulation for DVB-S2
Author :
Clevorn, T. ; Oldewurtel, Frank ; Godtmann, Susanne ; Vary, Peter
Author_Institution :
Inst. of Commun. Syst. & Data Process., RWTH Aachen Univ.
Abstract :
We propose the application of iterative demodulation at a DVB-S2 receiver. The demodulation is improved by feedback of extrinsic information from the decoder of the LDPC channel code. The presented simulation results show an enhancement of about 0.3 dB, which is notable taking the gap to the Shannon limit into account. The additionally required computational demand is negligible and the receiver only needs to be slightly modified. With the unmodified transmitter the proposed scheme is completely standard compliant
Keywords :
channel coding; demodulation; digital video broadcasting; feedback; iterative decoding; modulation coding; receivers; DVB-S2 receiver; LDPC channel code; Shannon limit; decoder; digital video broadcasting; extrinsic information; feedback; iterative demodulation; low density parity check code; Baseband; Demodulation; Digital video broadcasting; Error correction codes; Feedback; Iterative decoding; Modulation coding; Parity check codes; Satellite broadcasting; Transmitters;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2005. PIMRC 2005. IEEE 16th International Symposium on
Conference_Location :
Berlin
Print_ISBN :
9.7838007291e+012
DOI :
10.1109/PIMRC.2005.1651909
