Noncoherent block-coded TAPSK and 16QAM using linear component codes

  • Authors:
  • Ruey-Yi Wei;Tzu-Shiang Lin;Shi-Shan Gu

  • Affiliations:
  • Department of Communication Engineering, National Central University, Jhongli, Taiwan, R.O.C.;Department of Communication Engineering, National Central University, Jhongli, Taiwan, R.O.C.;WorldView Technology Corp., Hsin-Chu, Taiwan, R.O.C. and Department of Communication Engineering, National Central University, Jhongli, Taiwan, R.O.C.

  • Venue:
  • IEEE Transactions on Communications
  • Year:
  • 2010

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Abstract

In this paper, we derive minimum noncoherent distances of block-coded TAPSK (twisted amplitude and phase shift keying) and 16QAM (quadrature-amplitude modulation), both using linear component codes. According to the derived distances, noncoherent block-coded TAPSK (NBC-TAPSK) and noncoherent block-coded 16QAM (NBC-16QAM) are proposed. If the block length is very small, NBC-16TAPSK performs best among all noncoherent schemes and NBC-16QAM performs worse due to its small minimum noncoherent distance. However, if the block is not short, NBC-16QAM has the best error performance because the codewords with small noncoherent distances are rare.