Bandwidth effects - a validation study of the spatial channel model extension (SCME) for 3GPP long-term evolution and IEEE 802.16e technologies

Wei J. Chang*, Jenn-Hawn Tarng

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

To achieve high data rate requirements of systems beyond 3rd generation (B3G), standardization and development of enhanced radio access technologies with wide bandwidth and multiple antennas are sustained. To enable multiple-input multiple-output (MIMO) antenna technologies in cellular systems, standardization groups 3GPP and 3GPP2 defined a spatial channel model (SCM) for cellular systems with bandwidths up to 5 MHz. Recently, for 3GPP long-term evolution (LTE) standardization, an SCM extension (SCME) model including the wideband spatial channel characteristics was proposed to support bandwidths up to 20 MHz. In addition, the spatial channel correlation generating methodology in SCME was also proposed in IEEE 802.16e MIMO channel model, which is under developing. In this paper, we validate the SCME for 3GPP LTE and IEEE 802.16e technologies through an extensive measurement campaign with bandwidths up to 50 MHz. It is found that most of the channel parameters used in SCM/SCME are well-matched with measurement results. However, the measured rms delay spread is decreased when the bandwidth is increased, which is not presented in SCM/SCME. To explain this phenomenon, a tapped-delay-line model with bandwidth-dependent parameter is proposed.

Original languageEnglish
Pages (from-to)9-15
Number of pages7
JournalInternational Journal of Electrical Engineering
Volume15
Issue number1
StatePublished - 1 Feb 2008

Keywords

  • 3GPP LTE
  • Bandwidth dependence
  • IEEE 802.16e
  • Radio propagation
  • Spatial channel model

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