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

*此作品的通信作者

研究成果: Article同行評審

摘要

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.

原文English
頁(從 - 到)9-15
頁數7
期刊International Journal of Electrical Engineering
15
發行號1
出版狀態Published - 1 2月 2008

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