Change search
ReferencesLink to record
Permanent link

Direct link
Analysis and management of heterogeneous user mobility in large-scale downlink systems
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
2013 (English)In: 2013 Asilomar Conference on Signals, Systems and Computers, IEEE Computer Society, 2013, 773-777 p.Conference paper (Refereed)
Abstract [en]

Modern cellular networks need to serve user terminals with large disparities in mobility, which incurs different accuracy of the channel state information for each user. The impact of such heterogeneous mobility on the multi-cell downlink is analyzed in this paper. The base stations serve a multitude of users by coordinated beamforming. We derive deterministic equivalents for the user performance in a large scale system where the number of transmit antennas and user terminals grow large at a fixed ratio. We show that low and high mobility users can coexist and be served simultaneously, since the CSI imperfections of a user only harms the performance of this particular user. Simulations are used to verify the applicability of our large scale approximations for systems of practical dimensions. Furthermore, we show that the performance of high mobility users can be improved by explicitly managing the user priorities in the network.

Place, publisher, year, edition, pages
IEEE Computer Society, 2013. 773-777 p.
, Asilomar Conference on Signals, Systems and Computers. Conference Record, ISSN 1058-6393
Keyword [en]
Cellular network, Coordinated beamforming, Deterministic equivalents, Downlink systems, Heterogeneous users, Transmit antenna, User performance, User priorities
National Category
Communication Systems
URN: urn:nbn:se:kth:diva-147294DOI: 10.1109/ACSSC.2013.6810390ScopusID: 2-s2.0-84901278576ISBN: 978-1-4799-2388-5OAI: diva2:729538
2013 47th Asilomar Conference on Signals, Systems and Computers; Pacific Grove, CA; United States; 3 November 2013 through 6 November 2013

QC 20140626

Available from: 2014-06-26 Created: 2014-06-25 Last updated: 2014-06-26Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Björnson, Emil
By organisation
Signal ProcessingACCESS Linnaeus Centre
Communication Systems

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: 14 hits
ReferencesLink to record
Permanent link

Direct link