User Scheduling for Millimeter Wave Hybrid Beamforming Systems With Low-Resolution ADCs

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dc.contributor.authorChoi, Jinseokko
dc.contributor.authorLee, Gilwonko
dc.contributor.authorEvans, Brian L.ko
dc.date.accessioned2023-03-22T03:00:54Z-
dc.date.available2023-03-22T03:00:54Z-
dc.date.created2023-03-22-
dc.date.issued2019-04-
dc.identifier.citationIEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, v.18, no.4, pp.2401 - 2414-
dc.identifier.issn1536-1276-
dc.identifier.urihttp://hdl.handle.net/10203/305714-
dc.description.abstractWe investigate uplink user scheduling for millimeter wave (mm-wave) hybrid analog/digital beamforming systems with low-resolution analog-to-digital converters (ADCs). Deriving new scheduling criteria for the mm-wave systems, we show that the channel structure in the beamspace, in addition to the channel magnitude and orthogonality, plays a key role in maximizing the achievable rates of scheduled users due to quantization error. The criteria show that to maximize the achievable rate for a given channel gain, the channels of the scheduled users need to have 1) as many propagation paths as possible with unique angle-ofarrivals (AoAs) and 2) even power distribution in the beamspace. Leveraging the derived criteria, we propose an efficient scheduling algorithm for mm-wave zero-forcing receivers with low-resolution ADCs. We further propose a chordal distance-based scheduling algorithm that exploits only the AoA knowledge and analyze the performance by deriving ergodic rates in closed form. Based on the derived rates, we show that the beamspace channel leakage resulting from phase offsets between AoAs and quantized angles of analog combiners can lead to sum rate gain by reducing quantization error compared to the channel without leakage. The simulation results validate the sum rate performance of the proposed algorithms and the derived ergodic rate expressions.-
dc.languageEnglish-
dc.publisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC-
dc.titleUser Scheduling for Millimeter Wave Hybrid Beamforming Systems With Low-Resolution ADCs-
dc.typeArticle-
dc.identifier.wosid000467572100028-
dc.identifier.scopusid2-s2.0-85064053792-
dc.type.rimsART-
dc.citation.volume18-
dc.citation.issue4-
dc.citation.beginningpage2401-
dc.citation.endingpage2414-
dc.citation.publicationnameIEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS-
dc.identifier.doi10.1109/TWC.2019.2904030-
dc.contributor.localauthorChoi, Jinseok-
dc.contributor.nonIdAuthorLee, Gilwon-
dc.contributor.nonIdAuthorEvans, Brian L.-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorMillimeter wave-
dc.subject.keywordAuthorlow-resolution ADCs-
dc.subject.keywordAuthorhybrid MIMO system-
dc.subject.keywordAuthoruser scheduling-
dc.subject.keywordAuthorchannel structure-
dc.subject.keywordPlusCHANNEL ESTIMATION-
dc.subject.keywordPlusBLOCK DIAGONALIZATION-
dc.subject.keywordPlusMIMO SYSTEMS-
dc.subject.keywordPlusCAPACITY-
dc.subject.keywordPlusARCHITECTURES-
dc.subject.keywordPlusDOWNLINK-
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