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Volume 30 Issue 1
Jan.  2011
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Zhu Ai-min, Wu Tuan-feng. Iterative Decision-Feedback Differential Demodulation of MDPSK Concatenated with LDPC Codes[J]. Journal of Electronics & Information Technology, 2008, 30(1): 114-116. doi: 10.3724/SP.J.1146.2006.00938
Citation: Zhu Ai-min, Wu Tuan-feng. Iterative Decision-Feedback Differential Demodulation of MDPSK Concatenated with LDPC Codes[J]. Journal of Electronics & Information Technology, 2008, 30(1): 114-116. doi: 10.3724/SP.J.1146.2006.00938

Iterative Decision-Feedback Differential Demodulation of MDPSK Concatenated with LDPC Codes

doi: 10.3724/SP.J.1146.2006.00938 cstr: 32379.14.SP.J.1146.2006.00938
  • Received Date: 2006-06-29
  • Rev Recd Date: 2006-12-07
  • Publish Date: 2008-01-19
  • A receiver structure of M-ary Differential Phase-Shift Keying (MDPSK) concatenated with Low-Density Parity Check Codes in flat Rayleigh fading channels is proposed. An iterative hard decision-feedback detection algorithm also is analyzed ignorant of channel state information. Compared with conventional differential demodulation decoding one, this algorithm almost has no increasing in complexity and simulation results also confirm that it has 2.2dB gain at BER of 10-4 when iterative four times.
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  • [1] Divsalar D and Simon M K. Multiple-symbol differentialdetection of MPSK[J].IEEE Trans. on Commun.1990, 38(3):300-308 [2] Lampe L H J and Schober R. Decision feedback differentialdemodulation of bit interleaved coded MDPSK[J].Electron.Lett.1999, 35(25):2170-2171 [3] Ho P and Fung D. Error performance of multiple-symboldifferential detection of PSK signals transmitted overcorrelated Rayleigh fading channels. IEEE Trans. onCommun., 1992, 40(10): 25-29. [4] Peleg M and Shamai S. Iterative decoding of coded andinterleaved noncoherent multiple symbol detected DPSK[J].Electron. Lett.1997, 33(12):1018-1020 [5] Lampe H J and Schober. Iterative decision-feedbackdifferential demodulation of bit-interleaved coded MDPSKfor flat Rayleigh fading channels[J].IEEE Trans. on Commun.2001, 49(7):1176-1184 [6] Hou Jilei and Siegel H. Performance analysis and codeoptimization of low density parity-check codes on Rayleighfading channels. IEEE Journal on Selected Areas in Commun.2001, 19(5): 924-934. [7] Brink and Ashikhmin. Design of low-density parity-checkcodes for modulation and detection. IEEE Trans. onCommun. 2004, 52(4): 670-678. [8] Clarke R H. A statistical theory of mobile-radio reception.Bell Syst.Tech. J.. 1968, 47(7/8): 957-1000. [9] Proakis G. Digital Communication. America. The McGraw-Hill Companies, Inc.. 2001: 800-888.
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