Capacity-approaching signals for the scalar Gaussian channel

Abstract : We consider the scalar Gaussian channel with power constraint P. A gap exists between the channel capacity and the highest achievable rate of equiprobable uniformly spaced signal. Several approaches enable to overcome this limitation such as constellations with non-uniform probability or constellation shaping. In this short paper, we focus on constellation shaping. We present a method to construct one-dimensional constellations with equiprobable signaling that achieve the Gaussian capacity as the number of signal points goes to infinity.
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  • HAL Id : hal-01434827, version 1
  • OATAO : 16227

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Hugo Méric, Jérôme Lacan. Capacity-approaching signals for the scalar Gaussian channel. Wireless Telecommunications Symposium 2016, Apr 2016, London, United Kingdom. pp. 1-3. ⟨hal-01434827⟩

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