@article{10902/35521,
year = {2024},
month = {12},
url = {https://hdl.handle.net/10902/35521},
abstract = {This paper presents a novel lower boundary for the coherence block (ChB) length in timevariant wireless channels. A rigorous estimation of the ChB length is important for the proper design of
systems based on time division duplex-orthogonal frequency division multiplexing (TDD-OFDM). ChB
length is especially relevant in the case of massive multiple input-multiple output (m-MIMO) systems, as
it determines the overhead due to the massive channel estimation and, consequently, the spectral efficiency
that can be achieved. The proposed boundary is based on a tractable propagation model, is related to easily
obtainable channel parameters, and applicable to radio channels with temporal variation due to both the
movement of the users and the movement of objects that surround them; including vehicle-to-vehicle (V2V),
vehicle-to-infrastructure (V2I) and industrial Machine-to-Machine (M2M) communications.},
organization = {This work was supported by the MCIN/AEI/10.13039/50110001 1033/ through the I+D+i Project under Grant PID2020-119173RB-C22.},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
publisher = {IEEE Open Journal of Vehicular Technology, 2025, 6, 256-264},
title = {A lower boundary on the length of the coherence block in vehicular communications channels},
author = {Torres Jiménez, Rafael Pedro and Pérez López, Jesús Ramón},
}