华中科技大学学报（自然科学版）2009，Vol.37Issue(11)：69-72,4.
一种基于线性预测的MIMO系统半盲信道估计
Semi-blind channel estimation of multiple input multiple output systems using linear prediction
摘要
Abstract
For the overhead in pilot-based channel estimation and the complexity in blind channel esti-mation, a semi-blind channel estimation algorithm based on linear prediction for multiple input multiple output(MIMO) system was presented in this paper. The proposed algorithm combines the pilotbased and blind channel estimation methods, which also adopts linear prediction techniques to reduce the complexity and estimate correlative channel matrix by de-convolution. With proper weighting fac- tors, it not only can improve the precision of channel estimation, but also the bit error rate of system.Simulation results show that the proposed scheme can offer 1 dB gains in term of average bit error rate (BER) and 1～3 dB gains in mean square error(MSE) for channel estimation.关键词
多输入多输出/信道估计/线性预测/半盲/权值Key words
multiple input multiple output/ channel estimation/ linear prediction/ semi-blind/ weight分类
信息技术与安全科学引用本文复制引用
郝东来,葛建华..一种基于线性预测的MIMO系统半盲信道估计[J].华中科技大学学报（自然科学版）,2009,37(11):69-72,4.基金项目
国家自然科学基金资助项目(60332030) （60332030）
国家高技术研究发展计划资助项目(2006AA012270) （2006AA012270）
陕西省自然科学基金资助项目(2007F07). （2007F07）
