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

Volume

1

fYear

2010

fDate

24-25 April 2010

Firstpage

103

Lastpage

106

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/NSWCTC.2010.32

Filename

5480292