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Joint channel and carrier frequency offset estimation for multi-user MIMO-OFDM uplink transmissions
  • ISSN号:1005-8885
  • 期刊名称:《中国邮电高校学报:英文版》
  • 时间:0
  • 分类:TN929.5[电子电信—通信与信息系统;电子电信—信息与通信工程]
  • 作者机构:[1]Wireless Technology Innovation Institute and Key Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • 相关基金:This work is supported by the National Natural Science Foundation (60496312), the Hi-Tech Research and Development Program of China (2006AA01Z260), Gpbs (2006AA01Z283) and the Fund for Foreign Scholars in University Research and Teaching Programs (B07005). The work is also supported with Datang Mobile Communications Equipment Co. Ltd in the 3GPP LTE Collaboration Project.
中文摘要:

这篇文章建议关节的一个新算法为多用户多输入和多产量的隧道和搬运人频率偏移量(JCCFO ) 评价直角的频率部门 multiplexing (MIMO-OFDM ) 系统。一个最少的平方(LS ) 隧道评价和搬运人频率偏移量(CFO ) 关联评价在这贡献被联合。CFO 通常用乘许多在特殊同步训练序列被估计。在这贡献, CFO 评价被在交通时间许多基于飞行员符号利用隧道评价进一步改进。CFO 能首先从主要隧道评价被获得。然后与估计的 CFO 的知识,隧道评价能极大地被提高。计算机模拟结果显示建议 JCCFO 计划性能好。而且,计算复杂性是低的。

英文摘要:

This article proposes a new algorithm of joint channel and carrier frequency-offset OCCFO) estimation for multi-user multi-input and multi-output orthogonal frequency division multiplexing (MIMO-OFDM) systems. A least square (LS) channel estimation and a carrier frequency offset (CFO) correlation estimation are combined in this contribution. CFOs are generally estimated using training sequences in a special synchronization timeslot. In this contribution, CFO estimation is further improved by taking advantages of channel estimation based on pilot symbols in traffic timeslots. The CFOs can be first obtained from the primary channel estimation. And then, with the knowledge of the CFOs estimated, channel estimation can be enhanced greatly. Computer simulation results indicate that the proposed JCCFO scheme is of good performance. Besides, the computational complexity is low.

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期刊信息
  • 《中国邮电高校学报:英文版》
  • 主管单位:高教部
  • 主办单位:北京邮电大学、南邮、重邮、西邮、长邮、石邮
  • 主编:LU Yinghua
  • 地址:北京231信箱(中国邮电大学)
  • 邮编:100704
  • 邮箱:jchupt@bupt.edu.cn
  • 电话:010-62282493
  • 国际标准刊号:ISSN:1005-8885
  • 国内统一刊号:ISSN:11-3486/TN
  • 邮发代号:2-629
  • 获奖情况:
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  • 被引量:127