uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
The role of small cells, coordinated multi-point and massive MIMO in 5G
Show others and affiliations
2014 (English)In: IEEE Communications Magazine, ISSN 0163-6804, E-ISSN 1558-1896, Vol. 52, no 5, 44-51 p.Article in journal (Refereed) Published
Abstract [en]

5G will have to support a multitude of new applications with a wide variety of requirements, including higher peak and user data rates, reduced latency, enhanced indoor coverage, increased number of devices, and so on. The expected traffic growth in 10 or more years from now can be satisfied by the combined use of more spectrum, higher spectral efficiency, and densification of cells. The focus of the present article is on advanced techniques for higher spectral efficiency and improved coverage for cell edge users. We propose a smart combination of small cells, joint transmission coordinated multipoint (JT CoMP), and massive MIMO to enhance the spectral efficiency with affordable complexity. We review recent achievements in the transition from theoretical to practical concepts and note future research directions. We show in measurements with macro-plus-small-cell scenarios that spectral efficiency can be improved by flexible clustering and efficient user selection, and that adaptive feedback compression is beneficial to reduce the overhead significantly. Moreover, we show in measurements that fast feedback reporting combined with advanced channel prediction are able to mitigate the impairment effects of JT CoMP.

Place, publisher, year, edition, pages
2014. Vol. 52, no 5, 44-51 p.
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering with specialization in Signal Processing
URN: urn:nbn:se:uu:diva-219773DOI: 10.1109/MCOM.2014.6815892ISI: 000338032200005OAI: oai:DiVA.org:uu-219773DiVA: diva2:703106
Available from: 2014-03-05 Created: 2014-03-05 Last updated: 2014-08-12Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Sternad, MikaelApelfröjd, Rikke
By organisation
Signals and Systems Group
In the same journal
IEEE Communications Magazine
Electrical Engineering, Electronic Engineering, Information 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: 355 hits
ReferencesLink to record
Permanent link

Direct link