• 论文Ⅱ •

### LTE上行多用户SC-FDMA系统中时变信道估计方法

1. 南京邮电大学 无线通信重点实验室，江苏 南京 210003
• 出版日期:2014-09-25 发布日期:2017-06-14
• 基金资助:
国家重点基础研究发展计划(“973”计划)基金资助项目;国家自然科学基金项目资助;南京邮电大学人才引进基金项目资助;国家科技重大专项基金资助项目

### Time-varying channel estimation for LTE uplink SC-FDMA system with multi-user

Li-hua YANG,Long-xiang YANG,Hong-bo ZHU

1. Key Lab.of Wireless Communications,Nanjing University of Posts and Telecommunications,Nanjing 210003,China
• Online:2014-09-25 Published:2017-06-14
• Supported by:
The National Basic Research Program of China(973 Program);The National Natural Science Foundation of China;Nanjing University of Posts ＆ Telecommunications Project;The Important National Science and Technology Specific Project

Abstract:

A novel transform-domain based time-varying channel estimation method is proposed for the long term evolu-tion (LTE) uplink single carrier-frequency division multiple access (SC-FDMA) systems with multi-user.In the transform domain,the channel parameters of the two block pilots were firstly estimated,then the decision-directed (DD) based non-linear interpolation method was employed to estimate the channel parameters of the data symbols.To convenient equalization in the frequency domain,the transform expression of the transform-domain channel and frequency-domain channel was derived,by which the channel estimation in the frequency domain could be directly obtained.Simulation re-sults show that the performance of the proposed method is much better than those of the available methods,and the pro-posed method has a low computational complexity.

 [1] 赵 方,马 严,罗海勇,林 权. 基于顽健估计的室内节点定位算法[J]. 通信学报, 2008, 29(11): 15 -120 . [2] 刘林峰,刘业. 基于满Steiner树问题的水下无线传感器网络拓扑愈合算法研究[J]. 通信学报, 2010, 0(9): 9 -37 . [3] 刘 武,段海新,张 洪,吴建平. 基于信任的P2P网络安全管理体系结构研究[J]. 通信学报, 2008, 29(11A): 3 -16 . [4] 何晓明,冀晖,毛东峰,唐宏. 电信IP网向SDN演进的探讨[J]. 电信科学, 2014, 30(6): 131 -137 . [5] 程东年，汪斌强，王保进，张建辉. 网络结构自调整的柔性内涵初探[J]. 通信学报, 2012, 33(8): 26 -222 . [6] 张 霞，马连川，曹 源，张玉琢. CTCS-3级GSM-R车地通信数据丢失概率及其影响的研究[J]. 通信学报, 2014, 35(12): 24 -209 . [7] 付中南，尚 群，公绪晓. 校园网络接入层一体化的规划与实践[J]. 通信学报, 2014, 35(Z1): 18 -97 . [8] 郑 彦,陈宏伟,王汝传,王 杨. 新型分布式散列表——BChord[J]. 通信学报, 2008, 29(2): 4 -28 . [9] 李 子,蔡跃明. 基于±1二次规划的低复杂度球形解码算法[J]. 通信学报, 2007, 28(11): 3 -20 . [10] 胡永东,吴国新,钱 宁,张三峰. WiMax网络中自相似呼叫接纳控制算法研究[J]. 通信学报, 2012, 33(9): 2 -14 .