Joint Estimation of Channel Impulse Response and Carrier Frequency Offset for OFDM Systems

被引：10
|
作者：
Liu, Yinsheng [1 ]
Tan, Zhenhui [2 ]
Wang, Haibo [1 ]
Kwak, Kyung Sup [3 ]
机构：
[1] Inst Broadband Wireless Mobile Commun, Beijing 100044, Peoples R China
[2] State Key Lab Rail Traff Control & Safety, Beijing 100044, Peoples R China
[3] Inha Univ, Inchon 402751, South Korea
来源：
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2011年 / 60卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Carrier frequency offset (CFO); channel impulse response (CIR); joint estimation; orthogonal frequency-division multiplexing (OFDM); SYNCHRONIZATION;
D O I：
10.1109/TVT.2011.2173362
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 paper, an order recursive method is proposed to solve the joint estimation of channel impulse response (CIR) and carrier frequency offset (CFO) for orthogonal frequency-division multiplexing (OFDM) transmission. As long as one can obtain the solution for Qth-order Taylor expansion, the solution for (Q+1)th order can also be obtained via a simple recursive relation. The proposed recursive algorithm actually provides a method to handle any Qth-order Taylor expansion, instead of just the second order adopted in the technical literature. Significant improvement can be observed by adopting higher order approximation. Analytical mean-square-error (MSE) performance results are given, demonstrating the efficiency of the proposed algorithm.
引用
收藏
页码：4645 / 4650
页数：7
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