中国邮电高校学报(英文版) ›› 2016, Vol. 23 ›› Issue (5): 10-14.doi: 10.1016/S1005-8885(16)60052-3

• Wireless • 上一篇    下一篇

Performance analysis of frequency synchronization in MIMO-OFDM systems with ST/MRC scheme

韩道岐1,张建华2,余昊2,刘萌萌2   

  1. 1. 北京先进数通信息技术股份公司
    2. 北京邮电大学
  • 收稿日期:2016-04-05 修回日期:2016-06-30 出版日期:2016-10-30 发布日期:2016-10-26
  • 通讯作者: 张建华 E-mail:jhzhang@bupt.edu.cn
  • 基金资助:
    中国国家自然科学基金;国家科技支撑项目;国家科技重大专项;863项目;教育部博士点基金

Performance analysis of frequency synchronization in MIMO-OFDM systems with ST/MRC scheme

Han Daoqi, Zhang Jianhua , Yu Hao, Liu Mengmeng   

  • Received:2016-04-05 Revised:2016-06-30 Online:2016-10-30 Published:2016-10-26
  • Supported by:
    National Natural Science Foundation of China;National Science and Technology Major Project;863 Program;Doctoral Fund of Ministry of Education

摘要: In this paper, the performance of frequency synchronization in a multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) system is analyzed for the purpose of carrier frequency offset (CFO) estimation and compensation. Speci?cally, a joint transmit antenna selection (ST) and receive maximum ratio combining (MRC) (ST/MRC) method is adopted, that is, only one transmit antenna with the highest channel power is selected while MRC is used at the receiver to maximize the sum of frequency synchronization metric. The mean square error (MSE) closed-form expressions of CFO estimation are derived for several antenna con?gurations. Simulations in both ?at and multipath fading channels validate the theoretical analysis.

关键词: MIMO, OFDM, frequency synchronization

Abstract: In this paper, the performance of frequency synchronization in a multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) system is analyzed for the purpose of carrier frequency offset (CFO) estimation and compensation. Speci?cally, a joint transmit antenna selection (ST) and receive maximum ratio combining (MRC)(ST/MRC) method is adopted, that is, only one transmit antenna with the highest channel power is selected while MRC is used at the receiver to maximize the sum of frequency synchronization metric. The mean square error (MSE) closed-form expressions of CFO estimation are derived for several antenna con?gurations. Simulations in both ?at and multipath fading channels validate the theoretical analysis.

Key words: MIMO, OFDM, frequency synchronization