MIMO-OFDM最优训练序列设计  

Optimal Training Signals Design for MIMO-OFDM

作　　者：武威[1] 蔡跃明 

机构地区：[1]解放军理工大学通信工程学院研究生2队,江苏南京210007 [2]解放军理工大学通信工程学院无线通信系

出　　处：《军事通信技术》2008年第1期32-37,共6页Journal of Military Communications Technology

基　　金：江苏省自然科学基金资助项目(BK2006701);(BK2006002)

摘　　要：推导得到了宽带 MIMO-OFDM 信道模型。在空间相关情况下推导了非盲信道估计的 Bayesian CRB及 Bayesian MMSE。利用 Bayesian CRB 准则对发送的训练序列进行了功率分配,而后利用一种线性规划的方法对带有保护带宽 MIMO-OFDM 训练符号进行子载波功率分配,并利用发端酉矩阵进行最优相位设计。Broadband MIMO-OFDM channel models were derived.The Bayesian CRB and Bayesian MMSE of non-blind channel estimation was derived under spatial correlation circum- stances.The power of training sequences that minimize the channel estimation Bayesian CRB was allocated.A Linear Programming(LP) method was used for optimal power distribution design and the transmit unitary matrix was used for optimal phase design in MIMO-OFDM systems with guard subcarriers.

关 键 词：多入多出正交频分复用 信道估计 贝叶斯克拉美劳界 训练序列设计 

分 类 号：TN91[电子电信—通信与信息系统]