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Communication Dans Un Congrès Année : 2020

Multi-User Digital Beamforming Based on Path Angle Information for mm-Wave MIMO Systems

Résumé

In millimeter-wave wireless communications, beam-forming, also known as beamsteering is a promising technique that enables the base station, with a large number of antennas, to mitigate the tremendous path loss. This paper aims to assess the performance of two digital beamformers, namely, conjugate beamforming (CB) and digital beamsteering (DBS) in a millimeter-wave environment based on geometric aspects, such as the antenna array topology or the location of the user in the cell. The realistic channel model NYUSIM, from New York University, reproduces a mono-and multi-path urban scenario. We show that DBS, with only line-of-sight path angle information at the transmitter, outperforms CB, with full channel state information at the transmitter, in mono-path environment. However, in multi-path scenario, DBS is not able to exploit the diversity of non-line-of-sight paths and CB outperforms DBS.
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Dates et versions

hal-02474863 , version 1 (11-02-2020)

Identifiants

  • HAL Id : hal-02474863 , version 1

Citer

Israa Khaled, Ammar El Falou, Charlotte Langlais, Bachar El Hassan, Michel Jezequel. Multi-User Digital Beamforming Based on Path Angle Information for mm-Wave MIMO Systems. WSA 2020 : 24th International ITG Workshop on Smart Antennas, Feb 2020, Hambourg, Germany. ⟨hal-02474863⟩
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