基于空时频域耦合的分布式MIMO信道建模

项目名称： 基于空时频域耦合的分布式MIMO信道建模

项目编号： No.61201192

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 电子学与信息系统

项目作者： 张焱

作者单位： 清华大学

项目金额： 25万元

中文摘要： 分布式MIMO系统可以有效地缩短接入距离以改善功率覆盖，具有容量大、功耗低、易扩展、兼容性好等诸多优点，因而成为未来移动通信系统的发展趋势之一。对分布式MIMO信道的建模工作是分布式无线通信研究的基础，可为分布式MIMO系统的设计研发和评估优化提供依据。然而，分布式MIMO系统与传统集中式MIMO系统相比，在天线结构、物理信道特征等方面都有很大不同，因此其信道模型相对于传统集中式MIMO信道更为复杂，目前尚没有面向分布式MIMO算法评估及系统级仿真需求的信道模型。本课题以宽带、时变、分布式MIMO信道为研究对象，开展建模研究。通过对分布式MIMO信道实际测量数据进行分析，得到大小尺度信道的空、时、频参数相关性，分析提取各域间的耦合关系，进而为分布式MIMO信道建立信道模型。研究将为未来无线与移动通信技术发展提供理论和实践依据，对我国下一代通信系统的技术开发和系统应用起到基础性和先导性作用。

中文关键词： 信道建模；MIMO通信；分布式天线；无线信道；

英文摘要： Distributed MIMO system can effectively reduce access distance to improve system coverage performance. It can provide lots of advantages including large capacity, low power consumption, easy expansion and good compatibility. So it becomes one of the development trends of future mobile communication systems. Distributed MIMO channel modeling is the basis of the study of distributed wireless communication technology. The design and development and evaluation of distributed MIMO system optimization are relied on the channel models. However, compared with the traditional centralized MIMO system, the distributed MIMO system has different antenna structure and physical channel characteristics. So the distributed MIMO channel model is more complex. Until now, there is still no good distributed MIMO channel model which can satisfy the requirements of distributed MIMO algorithm design and system-level simulation. In this project, the broadband, time-varying, distributed MIMO channel modeling will be studied. By analyzing the actual measurement data, the large scale and small scale parameters of distributed MIMO channel will be extracted. The correlations between temporal, spatial and frequency domain will be analyzed. Finally, the distributed MIMO channel model will be established. This project will provide the theor

英文关键词： channel modeling；MIMO communication；distributed antenna；wireless channel；