OFDM系统叠加序列能量分配及同步方案  

Superimposed Training Power Allocation and Synchronization for OFDM Systems

作　　者：罗仁泽[1] 张光玉[2] 李杰[2] 楚恒[2] 朱维乐[2] 

机构地区：[1]电子科技大学中山学院,广东中山528402 [2]电子科技大学电子工程学院,四川成都610054

出　　处：《电子学报》2006年第4期670-673,共4页Acta Electronica Sinica

摘　　要：在OFDM系统中采用叠加训练序列进行同步、信道估计和均衡是一种好方法,但是,叠加训练序列能量分配及同步等问题一直是困扰学术界的难题.本文提出了关于叠加训练序列的一种能量分配方案、两种最佳叠置结构和一种同步算法.理论分析和仿真证明,这些方案和算法对于改善叠加训练序列OFDM系统性能有很大帮助.It is a good choice for OFDM system using superimposed training sequence to achieve synchronization, channel estimation and equalization, etc. However, many problems such as superimposed training power allocation are still waiting for us to solve. The power allocation scheme, two superimposed structure and the synchronization scheme with superimposed training are proposed to solve these problems. Theory analysis and simulation show that these schemes are useful for OFDM systems with superimposed training to improve the performances.

关 键 词：OFDM系统 功率分配 训练序列 数据叠置 同步 信道估计 

分 类 号：TN925.5[电子电信—通信与信息系统]