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清华大学学报(自然科学版)  2017, Vol. 57 Issue (8): 872-877,883    DOI: 10.16511/j.cnki.qhdxxb.2017.22.053
  电子工程 本期目录 | 过刊浏览 | 高级检索 |
基于干扰消除的BICM-FBMC-ID接收机设计
蔺萌1, 李云洲1,2, 许希斌1,2, 王京1,2
1. 清华大学 电子工程系, 微波与数字通信国家重点实验室, 北京 100084;
2. 清华大学 清华信息科学与技术国家实验室(筹), 北京 100084
Interference-mitigation based BICM-FBMC-ID receiver
LIN Meng1, LI Yunzhou1,2, XU Xibin1,2, WANG Jing1,2
1. State Key Laboratory on Microwave and Digital Communications, Department of Electronic Engineering, Tsinghua University, Beijing 100084, China;
2. Tsinghua National Laboratory for Information Science and Technology, Tsinghua University, Beijing 100084, China
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摘要 由于第五代移动通信(5G)中异步多址机器间通信等场景的特殊需求,非正交多载波技术得到广泛关注,偏移正交幅度调制滤波器组多载波技术(FBMC/OQAM)成为候选波形之一。该文首先分析了窄带干扰(NBI)和频选信道下残余固有干扰(RⅡ)对FBMC系统的影响。分别设计了NBI消除模块和RⅡ消除模块。为进一步提高系统性能,设计了将FBMC和基于迭代译码的比特交织编码调制(BICM-ID)相结合的接收机结构,在FBMC解调器与软入软出(SISO)译码器间进行迭代的消息交换。仿真结果表明:FBMC相比CP-OFDM,对NBI具有更好的鲁棒性,因此采用擦除法消除NBI影响获得了良好的效果;且经过数次迭代后,接收机性能接近假设所有先验信息已知时的最优性能界。对于不同星座类型在迭代过程中的性能也进行了分析比较。
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蔺萌
李云洲
许希斌
王京
关键词 偏移正交幅度调制滤波器组多载波技术(FBMC/OQAM)基于迭代译码的比特交织编码调制(BICM-ID)窄带干扰(NBI)残余固有干扰(RII)    
Abstract:Fifth generation (5G) mobile communications using asynchronous multiple access machine-to-machine communications will use non-orthogonal multicarrier signals. A filter bank-based multicarrier signal with offset quadrature amplitude modulation (FBMC/OQAM) is one candidate waveform. This study analyzed the effect of narrow band interference (NBI) and residual intrinsic interference (RⅡ) on FBMC systems. Interference mitigation models were then designed for the NBI and RⅡ for a receiver based on a combination of FBMC and bit-interleaved coded modulation with iterative decoding (BICM-ID) to further improve the performance. Simulations show that the FBMC is more robust to NBI than cyclic prefix orthogonal frequency division multiplexing (CP-OFDM). After several iterations, the receiver approaches the Genie performance bound which assumes perfectly known interference. The iterative performance of different constellation types are also compared.
Key wordsfilter bank-based multicarrier with offset quadrature amplitude modulation (FBMC/OQAM)    bit-interleaved coded modulation with iterative decoding (BICM-ID)    narrow band interference (NBI)    residual intrinsic interference (RII)
收稿日期: 2017-03-07      出版日期: 2017-08-15
ZTFLH:  TN929.5  
通讯作者: 李云洲,副研究员,E-mail:liyunzhou@tsinghua.edu.cn     E-mail: liyunzhou@tsinghua.edu.cn
引用本文:   
蔺萌, 李云洲, 许希斌, 王京. 基于干扰消除的BICM-FBMC-ID接收机设计[J]. 清华大学学报(自然科学版), 2017, 57(8): 872-877,883.
LIN Meng, LI Yunzhou, XU Xibin, WANG Jing. Interference-mitigation based BICM-FBMC-ID receiver. Journal of Tsinghua University(Science and Technology), 2017, 57(8): 872-877,883.
链接本文:  
http://jst.tsinghuajournals.com/CN/10.16511/j.cnki.qhdxxb.2017.22.053  或          http://jst.tsinghuajournals.com/CN/Y2017/V57/I8/872
  图1 BICMGFBMC系统发端结构
  图2 BICMGFBMCGID 接收机结构
  表1 仿真参数设置
  图3 NBI对FBMC和CPGOFDM 的影响比较
  图4 NBI估计与消除模块性能分析
  图5 BICMGFBMCGID 接收机迭代性能分析
  图6 不同星座映射下接收机性能比较
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