多点协作模式下参数化电磁散射簇的室内信道数值建模

项目名称： 多点协作模式下参数化电磁散射簇的室内信道数值建模

项目编号： No.61501454

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 无线电电子学、电信技术

项目作者： 吕鹏飞

作者单位： 中国科学院微电子研究所

项目金额： 19万元

中文摘要： 多点协作通信是通过协调终端附近多个基站的无线资源，提高小区边缘吞吐量和可靠性的无线通信技术，也是5G通信的关键技术之一。该系统的核心依赖于高精度的分布式多入多出信道模型。由于室内环境下5G所在3GHz-6GHz频段的散射复杂，加之人体移动对散射特性有很大影响，传统的实验方法难以给出统一的室内多点协作信道模型。本项目拟采用几何射线和时域有限差分混合数值仿真方法处理多尺度散射问题，通过分析电磁波多径相关性与室内典型散射体簇状分布相关性之间的内在联系，研究典型室内散射环境的物理特征，并将人体移动对电磁传播的影响概化为移动散射体簇对静止散射体簇的扰动，进而以散射体簇量化参数的形式，建立静态信道上附加扰动信道的室内分布式多入多出信道模型。本项目旨在通过数值仿真方法，揭示室内多点协作信道复杂现象背后的机理，建立统一的信道模型，最终促进该技术在室内移动互联网、物联网等领域中的应用。

中文关键词： 第五代通信；协作通信；分布式多点协作；信道建模；电磁仿真

英文摘要： Coordinated Multipoint transmission (CoMP) is an emerging technology aiming to enhance the throughput and reliability at the edges of the cells by cooperating the wireless resource of the base stations. It is one of the key technologies of 5G communication. The core of the CoMP relies on an accurate channel model of Distributed Multiple Input Multiple Output (D-MIMO). However, the modeling of 5G indoor CoMP channel with the traditional experimental method is difficult because of the complexity of the indoor scattering in 3GHz-6GHz frequency range and the influences of moving human body. This proposal solves the multi-scale scattering problem by a hybrid simulating technique that combines the Geometric Ray Tracing and the Finite Difference Time Domain. The intrinsic correlations of electromagnetic multipath propagation and of the distribution of indoor scattering clusters will be analyzed and the physical characteristics of indoor scattering circumstances will be investigated. The effect of the movement of human body will be considered through the disturbing moving clusters. A unified model of indoor D-MIMO channels will be established as the superposition of static channels and disturbing channels and parameterized. The purpose of the proposal is to reveal the mechanism behind the complex phenomena of the indoor D-MIMO by numerical simulation, to develop a unified indoor channel model, and to promote the application of CoMP in indoor mobile internet and internet of things.

英文关键词： 5G communication;cooperative communication;distributed coordinated multipoint;channel modeling;electromagnetic simulation