全维MIMO蜂窝系统中基于量子智能计算的信道估计与干扰协调技术研究

项目名称： 全维MIMO蜂窝系统中基于量子智能计算的信道估计与干扰协调技术研究

项目编号： No.61471200

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 无线电电子学、电信技术

项目作者： 李飞

作者单位： 南京邮电大学

项目金额： 83万元

中文摘要： 全维MIMO(或称3D MIMO)系统通过采用三维波束赋形技术增大小区的垂直覆盖范围，从而更有效地避免小区间干扰、增加系统吞吐量、提高频谱效率。本项目拟从信道模型、信道估计、干扰协调的角度深入研究3D MIMO关键技术。具体研究内容及目标是：①揭示3D MIMO信道特征的诸多关键因素，基于多元统计方法将一般信道建模推广到三维空间域信道建模，建立3D MIMO收发理论模型；②定义一次相关性拟合和二次相关性拟合概念，针对多径衰落信道，基于函数逼近论提出信道衰落相关性矩阵系数的综合快速计算新方法，建立3D MIMO信道的近似模型；③分析信道稀疏特性，根据互相关最小化准则采用量子免疫克隆算法设计导频图案，提出基于量子免疫克隆算法的3D MIMO信道稀疏估计新方法；④采用量子菌群算法进行波束赋形权值优化、设计下倾角自适应调整算法和功率分配优化方案，提出基于量子菌群算法的3D MIMO干扰协调新方法。

中文关键词： 全维MIMO；信道建模；信道估计；干扰协调；量子智能计算

英文摘要： In full-dimensional MIMO (also known as 3D MIMO) system, three-dimensional beamforming technology is adopted to increase cell coverage, so as to prevent inter-cell interference more effectively and increase system throughput and improve spectrum efficiency. Several key technologies in 3D MIMO system will be deeply studied in this project from the point of view of channel modelling, channel estimation and interference coordination. The contents and aims of this project are as follows: ① We will focus our researches on 3D MIMO channel modeling, and try to reveal the critical factors and key problems that effected the channel model. Then the general channel model is set up and extended as a three-dimensional channel model based on multivariate statistical methods, so a 3D MIMO transceiver theoretical model is built. ② Based on the channel model, we will propose a new methods for high efficiently, rapidly and accurately deriving the spatial correlation matrix of channel model by exact and approximate analysis by defining the concepts as the first correlation fitting and the second correlation fitting. Finally, we will establish the channel approximation model which is more applicable to simulate the various wireless environments. ③ We will analysis channel sparse features, we will propose a 3D MIMO channel sparse estimation method based on quantum immune clone algorithm and compressive sensing theory. ④ Based on the exploration of impacts of beamforming, down tilt, power allocation on spectral efficiency, we will propose a new interference coordination method based on quantum bacterial foraging algorithms for 3D MIMO.

英文关键词： Full dimension MIMO;Channel Modeling;Channel Estimation;Interference Coordination;Quantum Intelligence Computation