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Communication Dans Un Congrès Année : 2016

Feedback Enhances Simultaneous Energy and Information Transmission in Multiple Access Channels

Résumé

In this paper, the fundamental limits of simultaneous information and energy transmission in the two-user Gaussian multiple access channel with feedback are fully characterized. All the achievable information and energy transmission rates (in bits per channel use and energy-units per channel use, respectively) are identified. More specifically, the information-energy capacity region is fully characterized. A simple achievability scheme based on power-splitting and Ozarow's scheme is shown to be optimal. Finally, the maximum individual information rates and the information sum-capacity that are achievable given a minimum energy rate constraint of b energy-units per channel use at the input of the energy harvester are identified. An interesting conclusion is that for a fixed information transmission rate, feedback can at most double the energy transmission rate with respect to the case without feedback.
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Dates et versions

hal-01262801 , version 1 (27-01-2016)
hal-01262801 , version 2 (01-06-2016)

Identifiants

  • HAL Id : hal-01262801 , version 2

Citer

Selma Belhadj Amor, Samir M. Perlaza, Ioannis Krikidis, H. Vincent Poor. Feedback Enhances Simultaneous Energy and Information Transmission in Multiple Access Channels. IEEE International Symposium on Information Theory, Jul 2016, Barcelone, Spain. ⟨hal-01262801v2⟩
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