基于导频的宽带无线通信系统下行链路参考符号设计  

Reference Symbol Design of Downlink Based on Pilot in Broadband Wireless Communication

作　　者：张日华[1] 李迎春[1] 武卓[1] 

机构地区：[1]上海大学通信与信息工程学院,上海200072

出　　处：《上海大学学报（自然科学版）》2008年第6期568-571,共4页Journal of Shanghai University:Natural Science Edition

基　　金：上海市科委基金资助项目(06dz15013-3)

摘　　要：设计一种用于宽带无线通信系统下行链路的参考符号,该符号由PN码、OVSF码和GCL/CAZAC序列组合而成.仿真结果表明,采用该参考符号实现的导频能够很好地抑制扇区间和小区间的同频干扰,有效降低系统的误码率和误块率,提高了系统的吞吐量.A kind of reference symbol is designed for downlink based on pilot of broadband wireless communication systems in this paper. The new pilot is made of PN code, orthogonal variable spreading factor（OVSF） code and generalized chirp like/constant amplitude zero auto-correlation（GCL/CAZAC） sequence. Simulation results indicate that the proposed method can restrain the co-channel interference in adjacent sectors and cells. The bit error rate （BER）, block error rate （BLER）, and throughput of the system are all improved effectively.

关 键 词：导频符号 扰码 GCL/CAZAC 多输入多输出(MIMO) 正交频分复用 

分 类 号：TN911.254[电子电信—通信与信息系统]