计算机工程

• 移动互联与通信技术 • 上一篇    下一篇

太赫兹通信中MIMO 信道建模与容量分析

李伟琨,姚信威,王万良,吴腾超   

  1. (浙江工业大学计算机学院,杭州310023)
  • 收稿日期:2014-04-21 出版日期:2015-04-15 发布日期:2015-04-15
  • 作者简介:李伟琨(1990 - ),男,本科生,主研方向:太赫兹通信;姚信威,讲师;王万良,教授、博士生导师;吴腾超,硕士。
  • 基金项目:
    国家自然科学基金资助项目(61379123);国家“十二五”科技支撑计划基金资助项目(2012BAD10B01);浙江省教育厅科技基 金资助项目(Y201431815)。

MIMO Channel Modeling and Capacity Analysis in Terahertz Communication

LI Weikun,YAO Xinwei,WANG Wanliang,WU Tengchao   

  1. (School of Computer Science,Zhejiang University of Technology,Hangzhou 310023,China)
  • Received:2014-04-21 Online:2015-04-15 Published:2015-04-15

摘要: 随着纳米技术的不断发展与新型纳米材料石墨烯研究的不断深入,作为纳米网络通信技术的太赫兹通信成为无线通信的研究热点,然而现阶段对太赫兹通信中多输入多输出(MIMO)机制的研究较少。为此,采用离散化的数学方法,以接收端获取信道信息的遍历容量模型为基础,结合太赫兹信道的分子吸收噪声与传输路径损失,提出一种适用于太赫兹通信的MIMO 信道模型。对建立的MIMO 信道模型进行仿真与分析,结果表明,与单一太 赫兹信道相比,太赫兹通信中的MIMO 信道具有更高的信道容量与传输比特率。

关键词: 太赫兹通信, 信道模型, 多输入多输出, 遍历容量, 无线通信, 纳米网络

Abstract: With the development of nanotechnology and the graphene-based nano materials,terahertz communication, the preferred communication technology of nano network is becoming the new hotspot for wireless communication. However,the performance of Multiple Input Multiple Output(MIMO) channel in terahertz band is still unknown. A novel MIMO channel model in terahertz communications is proposed by using a discrete mathematical method. Combining the molecular absorption and the path loss in terahertz band,a model of channel capacity is presented based on the channel state information at the receiver. MIMO channel model in terahertz communications is verified in the simulation. Result shows that the MIMO channel in terahertz communication can support higher capacity and transmission bit-rates than the single terahertz channel.

Key words: terahertz communication, channel model, Multiple Input Multiple Output ( MIMO), traversal capacity, wireless communication, nano network

中图分类号: