González-Coma, José P.Rodríguez-Fernández, JavierGonzález-Prelcic, NuriaCastedo, LuisHeath, Robert W.2024-01-192024-01-192018-05J. P. Gonzalez-Coma, J. Rodriguez-Fernandez, N. Gonzalez-Prelcic, L. Castedo, y R. W. Heath, «Channel Estimation and Hybrid Precoding for Frequency Selective Multiuser mmWave MIMO Systems», IEEE J. Sel. Top. Signal Process., vol. 12, n.o 2, pp. 353-367, may 2018, doi: 10.1109/JSTSP.2018.28191301932-45531941-0484http://hdl.handle.net/2183/35015© 2018 IEEE. This version of the article has been accepted for publication, after peer review. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The Version of Record is available online at: https://doi.org/10.1109/JSTSP.2018.2819130[Abstract]: Configuring the hybrid precoders and combiners in a millimeter wave multiuser multiple-input multiple-output system is challenging in frequency selective channels. In this paper, we develop a system that uses compressive estimation on the uplink to configure precoders and combiners for the downlink. In the first step, the base station (BS) simultaneously estimates the channels from all the mobile stations on each subcarrier. To reduce the number of measurements required, compressed sensing techniques are developed that exploit common support on the different subcarriers. In the second step, exploiting reciprocity and the channel estimates the BS designs hybrid precoders and combiners. Two algorithms are developed for this purpose, with different performance and complexity tradeoffs: First, a factorization of the purely digital solution; and second, an iterative hybrid design. Extensive numerical experiments evaluate the proposed solutions comparing to the state-of-the-art strategies, and illustrating design tradeoffs in overhead, complexity, and performance.engAntenna arraysCompressive estimationFrequency selective channelHybrid precodingMillimeter wave MIMOMMSEMultiuserOFDMjournal articleopen access