Wireless communication system having error-control coder and linear precoder

DC CAFC
  • US 7,251,768 B2
  • Filed: 04/21/2003
  • Issued: 07/31/2007
  • Est. Priority Date: 04/22/2002
  • Status: Active Grant
First Claim
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1. A wireless communication device comprising:

  • an error-control coder that applies an error correction code to produce an encoded data stream of information bearing symbols;

    a bit interleaver to produce an interleaved data stream in which neighboring data bits of the encoded data stream are positioned to be mapped to different constellation symbols;

    a mapping unit to map the interleaved data stream to the constellation symbols, wherein the constellation symbols are selected from a constellation having a finite alphabet;

    a precoder that applies a liner transformation to the constellation symbols to produce precoded symbols, wherein the precoded symbols are complex numbers that are not restricted to the finite alphabet of the constellation;

    a symbol interleaver to process the precoded symbols to produce permuted blocks of the precoded symbols; and

    a modulator to produce an output waveform in accordance with the permuted blocks of precoded symbols for transmission through a wireless channel.

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