Update Rate of Channel Estimation for UMTS-HSDPA in Time-Varying Channels

被引：0
|
作者：
Freudenthaler, Klemens [1 ]
Springer, Andreas [1 ]
Wehinger, Joachim [2 ]
Mecklenbraeuker, Christoph F. [2 ]
机构：
[1] Johannes Kepler Univ Linz, Altenbergerstr 69, A-4040 Linz, Austria
[2] Forschungszentrum Telekommun Wien, Vienna, Austria
来源：
2006 IEEE 63RD VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-6 | 2006年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We investigate the update rate for channel estimation in time-varying channels for UMTS-HSDPA. Our channel estimator is based on correlation of the received chip stream and the known pilot stream. This results in an averaging of the estimated channel over a block. First, we investigate the influence of the update rate by averaging over the perfectly known channel at the receiver. This corresponds to the upper bound for block averaging. Second, we examine the throughput by averaging over correlation based channel estimation. We find specific update rates for the ITU-channel models PB3, VA30, and VA120 [1] in combination with RAKE reception or LMMSE equalization for 16-QAM symbol constellation.
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收藏
页码：1777 / +
页数：2
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