Soft decisions for DQPSK demodulation for the Viterbi decoding of the convolutional codes

@inproceedings{Hewavithana2003SoftDF,
  title={Soft decisions for DQPSK demodulation for the Viterbi decoding of the convolutional codes},
  author={Thushara C. Hewavithana and Mike Brookes},
  booktitle={ICASSP},
  year={2003}
}
The conventional soft decision algorithm for DQPSK uses only the differential angle between consecutive DQPSK symbols. However it is possible to improve the accuracy of the soft decision bits by taking the amplitude information of the two DQPSK symbols into account. This paper introduces novel soft decision algorithms based on this approach which give a performance improvement compared to the conventional methods equivalent to an SNR gain of up to 5 dB. 
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COST 207 Digital Land Mobile Radio Communications

  • M. Failli
  • EUR 12160 EN
  • 2001
Highly Influential
5 Excerpts

DAB. Digital Audio Broadcasting (DAB) to mobile, portable and fixed receivers

  • III, L Band, E RPropModelTI-ACGNSNRB
  • EN 300401,
  • 2000
1 Excerpt

OFDM systems with differential modulation schemes and turbo decoding techniques

  • H. Rohling, T. May
  • 2000
2 Excerpts

An Improved Differential Detection Scheme Based on Maximum Likelihood Sequence Estimation

  • T Kojima, M. Miyake
  • 1998

Digital Communications, 3 ed

  • J GProakis
  • McGraw-Hill Inc,
  • 1995
1 Excerpt

The Performance of Trellis-Coded MDPSK with Multiple Symbol Detection

  • D Divsalar, M KSimon, M Shahshahani
  • IEEE Transactions on Communications, Sept. 1990.
  • 1990

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