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November 22, 2002550 citations

Optimal power allocation over parallel Gaussian broadcast channels

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DTDavid Tse

Key Points

  • To determine the optimal power allocation strategy and characterize the capacity region for multi-user communication over parallel Gaussian broadcast channels.
  • Analyzed theoretical communication models consisting of a set of parallel Gaussian broadcast channels with distinct user-specific noise power levels.
  • Derived mathematical formulations to optimize power distribution across parallel subchannels to maximize achievable rate regions.
  • Demonstrated that optimal power allocation across parallel channels successfully achieves the fundamental channel capacity.
  • Established an explicit mathematical characterization of the optimal power allocation policies and the corresponding multi-user capacity region.

Abstract

We analyze the problem of communication over a set of parallel Gaussian broadcast channels, each with a different set of noise power for the users. We show that capacity can be achieved by optimal power allocation over the channels, and obtain an explicit characterization of the optimal power allocations and the resulting capacity region.

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Cite This Study

David Tse (2002) studied this question.

synapsesocial.com/papers/6a11bf6c4bf0131c39178dd3https://doi.org/10.1109/isit.1997.612942
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