[1]谢波,李一兵,叶方.基于LTE上行SC-FDMA信道估计[J].应用科技,2012,39(06):49-52.[doi:10.3969/j.issn.1009-671X.201206002]
 XIE Bo,LI Yibing,YE Fang.Channel estimation based on the uplink SC-FDMA of LTE[J].yykj,2012,39(06):49-52.[doi:10.3969/j.issn.1009-671X.201206002]
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《应用科技》[ISSN:1009-671X/CN:23-1191/U]

卷:
第39卷
期数:
2012年06期
页码:
49-52
栏目:
现代电子技术
出版日期:
2013-01-15

文章信息/Info

Title:
Channel estimation based on the uplink SC-FDMA of LTE
文章编号:
1009- 671X(2012)06- 0049- 04
作者:
谢波李一兵叶方
哈尔滨工程大学 信息与通信工程学院,黑龙江 哈尔滨 150001
Author(s):
XIE Bo LI Yibing YE Fang
College of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, China
关键词:
SC-FDMACAZAC信道估计DFT门限LFE
Keywords:
SC-FDMACAZACchannel estimationDFTthresholdlong term evolution(LTE)
分类号:
TN929.5
DOI:
10.3969/j.issn.1009-671X.201206002
文献标志码:
A
摘要:
基于LTE上行链路SC-FDMA调制技术,提出了一种改进的变换域信道估计算法. 该算法在循环前缀以内引入门限,进一步去除噪声. 经仿真验证,在SER和MSE性能方面此算法相对LS算法和传统算法在较低信噪比情况下有较好的改善;在高信噪比情况下,本算法由于门限选择的原因导致性能下降.
Abstract:
This paper puts forward an improved transform domain channel estimation algorithm based on the uplink SC-FDMA (single-carrier frequency-division multiple access) modulation technology of the LTE (long term evolution). It introduces a threshold between circulation prefixes to remove the noise. The performance of this algorithm is compared with the LS (least square) and the traditional algorithm without additional threshold. Simulation results show that the new algorithm can get better performance than the other aforementioned two algorithms in SER (soft error rate) and MSE (mean square error) when SNR (signal noise ratio) is lower. Contrary to this situation,it loses superiority when SNR is high.

参考文献/References:

[1]周风波. 基于导频的OFDM系统信道估计算法的研究[J]. 舰船电子工程,2011,31(1):74-76.
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[8]童圣洁. OFDM系统LS与MMSE信道估计算法仿真分析 [J]. 微计算机信息, 2008 , 24(34):219-220.
[9]翟绍思. OFDM中基于块状分布的导频信号信道估计仿真[J]. 数字通信, 2011, 12(2):64-66 .
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备注/Memo

备注/Memo:
中央高校基本科研业务费专项基金资助项目 (HEUCF120807)
更新日期/Last Update: 2013-01-09