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Efficient Beamforming for Mobile mmWave Networks
KTH, School of Electrical Engineering and Computer Science (EECS), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).ORCID iD: 0000-0002-5652-4458
KTH, School of Electrical Engineering and Computer Science (EECS), Network and Systems Engineering.ORCID iD: 0000-0001-6737-0266
2019 (English)Conference paper, Published paper (Refereed)
Abstract [en]

We design a lightweight beam-searching algorithmfor mobile millimeter-wave systems. We construct and maintaina set of path skeletons, i.e., potential paths between a user and theserving base station to substantially expedite the beam-searchingprocess. To exploit the spatial correlations of the channels, wepropose an efficient algorithm that measures the similarity ofthe skeletons and re-executes the beam-searching procedure onlywhen the old one becomes obsolete. We identify and optimizeseveral tradeoffs between: i) the beam-searching overhead andthe instantaneous rate of the users, and ii) the number of usersand the update overhead of the path skeletons. Simulation resultsin an outdoor environment with real building map data show thatthe proposed method can significantly improve the performanceof beam-searching in terms of latency, energy consumption andachievable throughout.

Place, publisher, year, edition, pages
Avignon France: IFIP , 2019.
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-249492OAI: oai:DiVA.org:kth-249492DiVA, id: diva2:1304501
Conference
The International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks WiOpt 2019
Note

QC 20190617

Available from: 2019-04-12 Created: 2019-04-12 Last updated: 2019-06-17Bibliographically approved

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Shokri-Ghadikolaei, Hossein

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