Measurements and performance of large MIMO systems at 2.4 GHz for indoor WLAN

Q. Wang, Z. Cao, D. Debbarma, I. Niemegeers, S. Heemstra De Groot, A. Lo

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

3 Citations (Scopus)
2 Downloads (Pure)

Abstract

Large MIMO is a new and promising technique for boosting wireless link capacity. Currently, the research of large MIMO focuses on the theoretical aspects while work on the practical implementations and analysis are very limited. In this paper, we present some critical investigations on the behaviors of large MIMO in real propagation environment based on extensive channel measurements. On the one hand, our analysis has verified the advantages that the MIMO channel vectors between users tend to be orthogonal and the optimal capacity approximates the theoretical upper bound as the antenna array size grows. On the other hand, we observe that the practical limitations of allowable antenna array size and achievable spatial degrees of freedom in the physical channel have significant impacts. Furthermore, in order to enable the utilization of linear precoding techniques in such high-dimensional MIMO systems to achieve close-to-optimal capacity, a large ratio between the antenna array size of the large MIMO system and the number of simultaneously served users should be maintained.

Original languageEnglish
Title of host publicationProceedings of the 2014 IEEE 21st Symposium on Communications and Vehicular Technology in the BeNeLux, IEEE SCVT 2014,
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Pages35-40
Number of pages6
ISBN (Electronic)9781479980307
DOIs
Publication statusPublished - 20 Feb 2014
Event21st IEEE Symposium on Communications and Vehicular Technology in the BeNeLux (IEEE SCVT 2014) - Delft, Netherlands
Duration: 10 Nov 201410 Nov 2014
Conference number: 21

Conference

Conference21st IEEE Symposium on Communications and Vehicular Technology in the BeNeLux (IEEE SCVT 2014)
Abbreviated titleSCVT 2014
CountryNetherlands
CityDelft
Period10/11/1410/11/14

Fingerprint Dive into the research topics of 'Measurements and performance of large MIMO systems at 2.4 GHz for indoor WLAN'. Together they form a unique fingerprint.

  • Cite this

    Wang, Q., Cao, Z., Debbarma, D., Niemegeers, I., Heemstra De Groot, S., & Lo, A. (2014). Measurements and performance of large MIMO systems at 2.4 GHz for indoor WLAN. In Proceedings of the 2014 IEEE 21st Symposium on Communications and Vehicular Technology in the BeNeLux, IEEE SCVT 2014, (pp. 35-40). [7046704] Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/SCVT.2014.7046704