Wireless indoor mimo channel propagation prediction based on a 3-D ray tracing technique

Mohd Nazrul Hanif Nordin, Rosdiadee Nordin

Research output: Contribution to journalArticle

Abstract

This paper presents a wireless Multiple Input Multiple Output (MIMO) radio wave propagation prediction technique based on the results generated from the software package known as the Site Specific Indoor Propagation Prediction. This study is motivated by the proposed IEEE 802.11ac standard, which supports MIMO spatial streams and is expected to be introduced sometime in early 2014. The results presented here are based on 2×2 MIMO antenna configurations. The indoor MIMO channel measurement is based on the propagation environment at Level 3, the administration building of the Faculty of Engineering & Built Environment (FEBE) at the Universiti Kebangsaan Malaysia (UKM). The operating frequencies considered in this study are the 2.4 GHz and 5 GHz frequency bands, which are representative of the proposed 802.11ac standard. In addition, measurements of on-site activity levels are presented. All of the simulation and visualization results are analyzed to measure the spatial correlation among the MIMO antennas (to reduce the effect of MIMO spatial interference), power delay profile, predicted path loss, power density, and ray paths, as well as the predicted signal strength and signal coverage. Comparisons are carried out with different frequencies and locations in the building. The results indicate that the 3-D ray tracing technique is able to predict the propagation characteristics of the MIMO wireless channel in an indoor environment. It is also found that the minimum spacing between the MIMO antenna elements should be at least 0.8λ as a practical design consideration.

Original languageEnglish
Pages (from-to)54-60
Number of pages7
JournalJournal of Theoretical and Applied Information Technology
Volume57
Issue number1
Publication statusPublished - 2013

Fingerprint

Ray Tracing
Ray tracing
Multiple-input multiple-output (MIMO)
3D
Propagation
Antennas
Prediction
Radio waves
Antenna
Software packages
Wave propagation
Frequency bands
Visualization
Path Loss
Malaysia
Spatial Correlation
Software Package
Wave Propagation
Spacing
Half line

Keywords

  • 3-D ray tracing
  • Channel model
  • Indoor propagation prediction
  • Multiple input multiple output (MIMO)
  • Wireless

ASJC Scopus subject areas

  • Computer Science(all)
  • Theoretical Computer Science

Cite this

Wireless indoor mimo channel propagation prediction based on a 3-D ray tracing technique. / Nordin, Mohd Nazrul Hanif; Nordin, Rosdiadee.

In: Journal of Theoretical and Applied Information Technology, Vol. 57, No. 1, 2013, p. 54-60.

Research output: Contribution to journalArticle

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