• Corpus ID: 10291877

Constant Envelope Signaling in MIMO Channels

  title={Constant Envelope Signaling in MIMO Channels},
  author={Borzoo Rassouli and Bruno Clerckx},
The capacity of the point-to-point vector Gaussian channel under the peak power constraint is not known in general. This paper considers a simpler scenario in which the input signal vector is forced to have a constant envelope (or norm). The capacity-achieving distribution for the non-identity $2\times 2$ MIMO channel when the input vector lies on a circle in $\mathbb{R}^2$ is obtained and is shown to have a finite number of mass points on the circle. Subsequently, it is shown that the degrees… 

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  • A. Tchamkerten
  • Computer Science
    IEEE Transactions on Information Theory
  • 2004
By extending Smith's (1969) argument, a sufficient condition on noise probability density functions is derived that guarantees finite support for the associated capacity-achieving distribution(s) of a scalar additive channel.