liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Uplink pilot and data power control for single cell massive MIMO systems with MRC
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Electrical Engineering, Communication Systems. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-7599-4367
2015 (English)In: International Symposium on Wireless Communication Systems (ISWCS), 2015, Institute of Electrical and Electronics Engineers (IEEE), 2015, 396-400 p.Conference paper (Refereed)
Abstract [en]

This paper considers the jointly optimal pilot and data power allocation in single cell uplink massive MIMO systems. A closed form solution for the optimal length of the training interval is derived. Using the spectral efficiency (SE) as performance metric and setting a total energy budget per coherence interval the power control is formulated as optimization problems for two different objective functions: the minimum SE among the users and the sum SE. The optimal power control policy is found for the case of maximizing the minimum SE by converting it to a geometric program (GP). Since maximizing the sum SE is an NP-hard problem, an efficient algorithm is developed for finding KKT (local maximum) points. Simulation results show the advantage of optimizing the power control over both pilot and data power, as compared to heuristic power control policies.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2015. 396-400 p.
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-128799DOI: 10.1109/ISWCS.2015.7454371ISBN: 978-146736540-6OAI: oai:DiVA.org:liu-128799DiVA: diva2:932009
Conference
2015 International Symposium on Wireless Communication Systems (ISWCS)
Available from: 2016-05-31 Created: 2016-05-31 Last updated: 2016-09-14

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Cheng, Hei VictorBjörnson, EmilLarsson, Erik G.
By organisation
Communication SystemsFaculty of Science & Engineering
Control Engineering

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 67 hits
ReferencesLink to record
Permanent link

Direct link