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The Optimal DoF Region for the Two-User Non-Coherent SIMO Multiple-Access Channel

Abstract : The optimal degree-of-freedom (DoF) region of the non-coherent multiple-access channels is still unknown in general. In this paper, we make some progress by deriving the entire optimal DoF region in the case of the two-user single-input multiple-output (SIMO) generic block fading channels. The achievability is based on a simple training-based scheme. The novelty of our result lies in the converse using a genie-aided bound and the duality upper bound. As a by-product, our result generalizes previous proofs for the single-user Rayleigh block fading channels.
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https://hal-centralesupelec.archives-ouvertes.fr/hal-03420092
Contributor : Khac-Hoang Ngo Connect in order to contact the contributor
Submitted on : Monday, November 8, 2021 - 11:51:57 PM
Last modification on : Monday, November 15, 2021 - 8:54:47 AM

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Khac-Hoang Ngo, Sheng Yang, Maxime Guillaud. The Optimal DoF Region for the Two-User Non-Coherent SIMO Multiple-Access Channel. 2018 IEEE Information Theory Workshop (ITW), Nov 2018, Guangzhou, China. pp.1-5, ⟨10.1109/ITW.2018.8613325⟩. ⟨hal-03420092⟩

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