New OFDM channel estimation algorithm with low complexity

被引：2

作者：

Xu, Guoping ^{[1
]}

Wei, Qun ^{[1
]}

Zhang, Xin ^{[1
]}

Yang, Dacheng ^{[1
]}

机构：

[1] Beijing Univ Posts & Telecommun, WT & T, Beijing 100876, Peoples R China

来源：

2007 IEEE 65TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-6 | 2007年

关键词：

channel estimation; m-sequency; OFDM;

D O I：

10.1109/VETECS.2007.466

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：

Based on the in-sequence, a time-domain channel estimation algorithm for orthogonal frequency division multiplexing (OFDM) is designed. The m-sequence with Cyclic Prefix (CP) is inserted between OFDM symbols in time domain as training sequence. The cross-correlation is calculated between the received sequence with CP removed and the appointed circular shifted in-sequence, which takes reliability of the estimation of channel impulse response on account of the two-valued auto-correlation property of the m-sequence, thereby the channel frequency response can be advisably decided. As a result of both theoretical analysis and simulation, we obtain an impressive performance with less system overhead and lower computation burden than conventional algorithms.

引用

页码：2257 / 2260

页数：4

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