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Direct beamformer estimation for hybrid architecture in mmWave dynamic TDD system |
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| Author: | Shah, Prashant Kumar1; Joshi, Krishna1; Joshi, Satya1; |
| Organizations: |
1Centre for Wireless Communications, University of Oulu, P.O. Box 4500, 90014, Finland 2Dept. of Electrical and Electronic Engineering, Tokyo University of Agriculture and Technology, Japan |
| Format: | article |
| Version: | accepted version |
| Access: | open |
| Online Access: | PDF Full Text (PDF, 0.2 MB) |
| Persistent link: | http://urn.fi/urn:nbn:fi-fe2020101684225 |
| Language: | English |
| Published: |
Institute of Electrical and Electronics Engineers,
2020
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| Publish Date: | 2020-10-16 |
| Description: |
AbstractThe problem of weighted sum-rate maximization for hybrid architecture in millimeter wave communications with dynamic time division duplexing is considered. We propose an over the air pilot- aided direct beamforming estimation technique for the considered problem, by exploiting the channel reciprocity. Proper selection of analog precoder/combiner not only suppresses large part of interference, but also ensures that less coordination is required for digital precoder/combiner design. We design analog precoder/combiner for each data stream in such a way that its signal strength is maximized; this strategy also minimizes large part of inter-stream interference that may arise due to the main lobe of analog beamformer. Then we design digital beamformer such that inter-stream interference is further mitigated, maximizing the overall weighted sum-rate of the network. see all
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| ISBN: | 978-1-7281-5178-6 |
| ISBN Print: | 978-1-7281-5179-3 |
| Pages: | 1 - 6 |
| Article number: | 9124904 |
| DOI: | 10.1109/WCNCW48565.2020.9124904 |
| OADOI: | https://oadoi.org/10.1109/WCNCW48565.2020.9124904 |
| Host publication: |
2020 IEEE Wireless Communications and Networking Conference Workshops, WCNCW 2020 |
| Conference: |
IEEE Wireless Communications and Networking Conference Workshops |
| Type of Publication: |
A4 Article in conference proceedings |
| Field of Science: |
213 Electronic, automation and communications engineering, electronics |
| Subjects: | |
| Funding: |
This work was supported by the European Commission in the framework of the H2020-EUJ-02-2018 project 5G-Enhance (Grant agreement no. 815056), the Academy of Finland 6Genesis Flagship (grant no. 318927), and the Ministry of Internal Affairs and Communications (MIC) of Japan. |
| EU Grant Number: |
(815056) 5G-Enhance - 5G Enhanced Mobile Broadband Access Networks in Crowded Environments |
| Academy of Finland Grant Number: |
318927 |
| Detailed Information: |
318927 (Academy of Finland Funding decision) |
| Copyright information: |
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