DocumentCode :
3044249
Title :
The iterative demodulation and decoding algorithm for convolutional coded GMSK signals over mobile satellite channel
Author :
Wu, Tuanfeng ; Xu, Youyun ; Gui, Lin ; Ma, Wenfeng
Author_Institution :
Dept. of Electron. Eng., Shanghai Jiaotong Univ., Shanghai, China
fYear :
2010
fDate :
21-23 Oct. 2010
Firstpage :
1
Lastpage :
4
Abstract :
A new simple iterative demodulation and decoding algorithm for convolutional coded GMSK signals, which is suitable for mobile satellite channel is presented. Demodulation is simplified through the approximation of GMSK as pulse amplitude modulated (PAM) signal, leading to a representation as the inner convolutional code of a serially concatenated convolutional code (SCCC). In addition, based on quasi-coherent demodulation of GMSK signals, an iterative channel estimation method, which can improve bit error rate (BER) performance of proposed coded GMSK signal transmission scheme dramatically, was expressed. Numerous simulation results show that the proposed algorithm can largely reduce the implementation complexity and have significant performance.
Keywords :
channel estimation; concatenated codes; convolutional codes; demodulation; error statistics; iterative decoding; minimum shift keying; mobile satellite communication; pulse amplitude modulation; GMSK signals; bit error rate; concatenated convolutional code; iterative channel estimation; iterative decoding; iterative demodulation; mobile satellite channel; pulse amplitude modulation; quasi-coherent demodulation; Bit error rate; Channel estimation; Convolutional codes; Demodulation; Iterative decoding; Receivers; GMSK; SCCC; iterative channel estimation; iterative demodulation and decoding;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Communications and Signal Processing (WCSP), 2010 International Conference on
Conference_Location :
Suzhou
Print_ISBN :
978-1-4244-7556-8
Electronic_ISBN :
978-1-4244-7554-4
Type :
conf
DOI :
10.1109/WCSP.2010.5633247
Filename :
5633247
Link To Document :
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