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Shaping using variable-size regions

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1 Author(s)
Livingston, J.N. ; Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA

Constellation shaping is extended to provide shaping gains without resorting to high-dimensional constellations. This is accomplished by dividing the constellation into unequally sized constellations, and selecting these constellations on an equiprobable basis. A design example is provided, demonstrating the simplicity and power of the approach

Published in:

Information Theory, IEEE Transactions on  (Volume:38 ,  Issue: 4 )