The Optimal DoF Region for the Two-User Non-Coherent SIMO Multiple-Access Channel
Information Theory
2018-06-12 v1 math.IT
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.
Keywords
Cite
@article{arxiv.1806.04102,
title = {The Optimal DoF Region for the Two-User Non-Coherent SIMO Multiple-Access Channel},
author = {Khac-Hoang Ngo and Sheng Yang and Maxime Guillaud},
journal= {arXiv preprint arXiv:1806.04102},
year = {2018}
}
Comments
9 pages, extended version (with proofs) of a paper submitted to 2018 IEEE Information Theory Workshop (ITW 2018)