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Constellations on the sphere with efficient encoding-decoding for noncoherent communications

Abstract: In this paper, we propose a new structured Grassmannian constellation for noncoherent communications over single-input multiple-output (SIMO) Rayleigh block-fading channels. The constellation, which we call Grass-Lattice, is based on a measure preserving mapping from the unit hypercube to the Grassmannian of lines. The constellation structure allows for onthe-fly symbol generation, low-complexity decoding, and simple bit-to-symbol Gray-like coding. Simulation results show that Grass-Lattice has symbol and bit error rate performance close to that of a numerically optimized unstructured constellation, and is more power efficient than other structured constellations proposed in the literature and a coherent pilot-based scheme.

 Fuente: IEEE Transactions on Wireless Communications, 2024, 23(3), 1886 - 1898

 Publisher: Institute of Electrical and Electronics Engineers Inc.

 Publication date: 01/03/2024

 No. of pages: 13

 Publication type: Article

 DOI: 10.1109/TWC.2023.3292935

 ISSN: 1536-1276

 Spanish project: PID2020-113887GB-I00

 Publication Url: https://doi.org/10.1109/TWC.2023.3292935

Authorship

JAVIER ALVAREZ VIZOSO

TUCEK, VIT

PETERS, GUNNAR