False alarm probability-based estimation of multipath channel length

被引：5

作者：

Lomi, V ^{[1
]}

Tonetto, D ^{[1
]}

Vangelista, L ^{[1
]}

机构：

[1] Telit Mobile Terminals SpA, Padua, Italy

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 2003年 / 51卷 / 09期

关键词：

channel estimation; delay estimation; land mobile radio cellular systems; multipath channels;

D O I：

10.1109/TCOMM.2003.816974

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：

In this letter, a multipath channel length estimation algorithm is proposed. It consists basically, of estimating all path delays using a threshold comparison-based criterion. The threshold is obtained by imposing a fixed false alarm probability on the detection of each path delay. Assuming that the shortest delay is normalized to be equal to zero, the largest one is then selected to provide the desired length estimate. The threshold, is analytically derived in the letter under the hypothesis that the channel impulse response (channel-IR) estimate is corrupted by additive white Gaussian noise. Simulation results for the Universal Mobile Telecommunication System-Time Division Duplex are presented, which show that the proposed algorithm affords a detector performance very close to the case when the channel IR length is a priori known.

引用

页码：1432 / 1434

页数：3