基于信道分析的动态可重构MIMO检测器  

Dynamic Reconfigurable MIMO Detector Based on Channel Analysis

作　　者：聂彧[1] 刘亮[1] 叶凡[1] 任俊彦[1,2] 

机构地区：[1]复旦大学专用集成电路与系统国家重点实验室,上海201203 [2]复旦大学微纳电子科技创新平台,上海201203

出　　处：《计算机工程》2011年第18期243-245,共3页Computer Engineering

基　　金：国家科技重大专项基金资助项目"载波体制超宽带高速无线通信芯片研发与应用示范"(2009ZX03006-007-01);"超宽带设备的技术规范和性能评测"(2009ZX03006-009)

摘　　要：在多输入多输出(MIMO)系统中分析信道增益对信号检测性能的影响,提出一种基于信道分析的智能MIMO信号检测算法,根据各对天线间的信道增益动态调整子节点扩展数,在检测性能接近最大似然算法性能的前提下,该算法比传统K-best算法减少54%的子节点扩展数。基于该算法设计并实现的动态可重构的超大规模集成电路MIMO检测器支持4×4天线阵列、QPSK/16-QAM调制信号,数据吞吐率达到800 Mb/s。This paper analyzes the effect of channel gains on the performance of signal detection in Multiple Input Multiple Output（MIMO） systems,and based on that this paper proposes an intelligent MIMO signal detection algorithm.It dynamically chooses child-node number according to the gains between antennas.While keeping the detection performance close to Maximum Likelihood（ML） algorithm,it can reduce up to 54% extension nodes compared with traditional K-best algorithm.Based on the proposed algorithm,a dynamic reconfigurable Very Large Scale Integrated Circuit（VLSI） MIMO detector is designed and implemented,and it can support 4×4 antennas,demodulates QPSK and 16-QAM signals with throughput up to 800 Mb/s.

关 键 词：信道分析 动态可重构 K-best算法 多输入多输出检测器 超大规模集成电路设计 

分 类 号：TP306[自动化与计算机技术—计算机系统结构]