Impact of Antenna Separation on the Link Correlation of MIMO HetNet LTE-Advanced Networks

Zuhanis Mansor, Evangelos Mellios, Joe McGeehan, Geoffrey Hilton, Andrew R Nix

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

2 Citations (Scopus)
314 Downloads (Pure)

Abstract

Since the angular spread is related to the propagation environment condition, MIMO channel capacity can be improved by increasing the antenna spacing. This paper evaluates the performance of link correlation for 2x2 MIMO deployments using horizontal and vertical UE and BS array configurations with various antenna separations at the UE and BS. The investigation makes use of measured 3D radiation patterns for the BS and UE antennas. This data is combined with state-of-the-art 3D ray-tracing predictions for a large number of macro and pico-cells locations. Results revealed that in order to achieve a correlation always in the range 0.25 to 0.75, the minimum required antenna spacing was around 0.5λ to 2λ for the UE, 2λ for the Pico-eNB and 10 λ for the Macro-eNB. MIMO performance (in terms of capacity) was seen to increase in pico-cells as a result of the higher angular spreads at the base station.
Original languageEnglish
Title of host publication2015 IEEE Asia Pacific Conference on Wireless and Mobile (APWiMob 2015)
Subtitle of host publicationProceedings of a meeting held 27-29 August 2015, Bandung, Indonesia
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages15-19
Number of pages5
ISBN (Electronic)9781479982905
ISBN (Print)9781479982912
DOIs
Publication statusPublished - Mar 2016
Event2015 IEEE Asia Pacific Conference on Wireless and Mobile - Grand Royal Panghegar Hotel, Bandung, Indonesia
Duration: 27 Aug 201529 Aug 2015

Conference

Conference2015 IEEE Asia Pacific Conference on Wireless and Mobile
Abbreviated titleAPWiMob
CountryIndonesia
CityBandung
Period27/08/1529/08/15

Keywords

  • HetNets
  • Cellular networks
  • Pico-cell
  • OFDMA

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