A Data-aided Channel Estimation Method Based on CAZAC

被引：0
|
作者：
Lu, Miao [1 ]
Chen, Bo [1 ]
Hou, Xiaolin [1 ]
Zhang, Xin [1 ]
Dongmei, Luo [2 ]
机构：
[1] Beijing Univ Posts & Telecommun, Beijing 100876, Peoples R China
[2] Qingdao Hismile Coll, Qingdao 266000, Peoples R China
来源：
68TH IEEE VEHICULAR TECHNOLOGY CONFERENCE, FALL 2008 | 2008年
关键词：
FH-OFDM; Channel Estimation; Frequency Hopping; CAZAC;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Frequency- hopped OFDM (FH-OFDM) technology will provide the additional benefits of frequency diversity and inter-cell interference averaging. However, it is difficult to get the channel state information. In this paper, we propose a method of channel estimation over slow fading channels for FH-OFDM systems. In the algorithm, the channel impulse response is estimated by correlation operation, by using the cyclic shift zero-correlation of CAZAC (Constant Amplitude Zero Auto-Correlation) sequence. In FH-OFDM systems, the influence of noise on channel estimation precision is restrained and inter-cell users' interference can be eliminated. At the same time, the algorithm is adapted to any hopping pattern.
引用
收藏
页码：670 / 674
页数：5
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