Title :
A Simplified Soft Decision Demapping Algorithm of 16-APSK Signals in AWGN Channels
Author :
Yao, Enxin ; Yang, Shuai ; Jiang, Wei
Author_Institution :
Sch. of Electron. Eng. & Comput. Sci., Peking Univ., Beijing, China
Abstract :
This paper proposes a novel soft decision demapping algorithm of 16-Amplitude Phase Shift Keying (16-APSK) signals in AWGN channels. The proposed algorithm has a lower complexity compared with the well-known Log-Max algorithm. Numerical results show that the proposed algorithm degrades little in BER performance when it is implemented with Low Density Parity Check (LDPC) codes.
Keywords :
AWGN channels; amplitude shift keying; error statistics; parity check codes; phase shift keying; 16-APSK signals; 16-amplitude phase shift keying signals; AWGN channels; BER performance; LDPC codes; log-max algorithm; low density parity check codes; simplified soft decision demapping algorithm; AWGN channels; Bit error rate; Computational complexity; Computational modeling; Decoding; Degradation; Digital video broadcasting; Modulation coding; Parity check codes; Phase shift keying; 16-APSK; LDPC; simplified algorithm; soft decision;
Conference_Titel :
Networks Security Wireless Communications and Trusted Computing (NSWCTC), 2010 Second International Conference on
Conference_Location :
Wuhan, Hubei
Print_ISBN :
978-0-7695-4011-5
Electronic_ISBN :
978-1-4244-6598-9
DOI :
10.1109/NSWCTC.2010.32
