Online Learning for Joint Beam Tracking and Pattern Optimization in Massive MIMO Systems
DC Field | Value | Language |
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dc.contributor.author | 정종진 | - |
dc.contributor.author | 송유재 | - |
dc.contributor.author | 임성훈 | - |
dc.contributor.author | 전상운 | - |
dc.date.accessioned | 2020-07-01T03:18:22Z | - |
dc.date.available | 2020-07-01T03:18:22Z | - |
dc.date.created | 2020-02-11 | - |
dc.date.issued | 2020-07 | - |
dc.identifier.uri | https://sciwatch.kiost.ac.kr/handle/2020.kiost/21006 | - |
dc.description.abstract | In this paper, we consider a joint beam tracking and pattern optimization problem for massive multiple input multiple output (MIMO) systems in which the base station (BS) selects a beamforming codebook and performs adaptive beam tracking taking into account the user mobility. A joint adaptation scheme is developed in a two-phase reinforcement learning framework which utilizes practical signaling and feedback information. In particular, an inner agent adjusts the transmission beam index for a given beamforming codebook based on short-term instantaneous signal-to-noise ratio (SNR) rewards. In addition, an outer agent selects the beamforming codebook based on long-term SNR rewards. Simulation results demonstrate that the proposed online learning outperforms conventional codebook-based beamforming schemes using the same number of feedback information. It is further shown that joint beam tracking and beam pattern adaptation provides a significant SNR gain compared to the beam tracking only schemes, especially as the user mobility increases. | - |
dc.description.uri | 1 | - |
dc.language | English | - |
dc.publisher | IEEE | - |
dc.relation.isPartOf | Proceedings of the IEEE INFOCOM 2020 - IEEE Conference on Computer Communications | - |
dc.title | Online Learning for Joint Beam Tracking and Pattern Optimization in Massive MIMO Systems | - |
dc.type | Conference | - |
dc.citation.conferenceDate | 2020-07-06 | - |
dc.citation.conferencePlace | US | - |
dc.citation.title | IEEE INFOCOM 2020 - IEEE Conference on Computer Communications | - |
dc.contributor.alternativeName | 송유재 | - |
dc.identifier.bibliographicCitation | IEEE INFOCOM 2020 - IEEE Conference on Computer Communications | - |
dc.description.journalClass | 1 | - |