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太赫兹通信中MIMO信道建模与容量分析 被引量:1

MIMO Channel Modeling and Capacity Analysis in Terahertz Communication
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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。 With the development of nanotechnology and the graphene-based nano materials,terahertz communication,the preferred communication technology of nano netw ork is becoming the new hotspot for w ireless communication.How ever,the performance of M ultiple Input M ultiple Output( M IM O) channel in terahertz band is still unknow n. A novel M IM O 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. M IM O channel model in terahertz communications is verified in the simulation. Result show s that the M IM O channel in terahertz communication can support higher capacity and transmission bit-rates than the single terahertz channel.
出处 《计算机工程》 CAS CSCD 北大核心 2015年第4期125-128,共4页 Computer Engineering
基金 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)
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 terahertz communication channel model Multiple Input Multiple Output(MIMO) traversal capacity w ireless communication nano netw ork
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