基于导频的宽带无线通信系统下行链路参考符号设计

上海大学学报(自然科学版)

基于导频的宽带无线通信系统下行链路参考符号设计

张日华，李迎春，武卓

（上海大学通信与信息工程学院，上海 200072）

收稿日期:2007-07-11 修回日期:1900-01-01 出版日期:2008-12-21 发布日期:2008-12-21
通讯作者: 李迎春

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

ZHANG Ri-hua, LI Ying-chun, WU Zhuo

(School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China)

Received:2007-07-11 Revised:1900-01-01 Online:2008-12-21 Published:2008-12-21
Contact: LI Ying-chun

摘要/Abstract

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.

关键词:

导频符号, GCL/CAZAC, 多输入多输出（MIMO）, 扰码, 正交频分复用

Abstract: 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.

Key words: generalized chirp like/constant amplitude zero auto-correlation(GCL/CAZAC）, multiinput multioutput（MIMO）, orthogonal frequency division multiplexing（OFDM）
, scrambling code, reference symbol

中图分类号:

TN911.25+4

张日华;李迎春;武卓. 基于导频的宽带无线通信系统下行链路参考符号设计[J]. 上海大学学报(自然科学版).

ZHANG Ri-hua;LI Ying-chun;WU Zhuo. Reference Symbol Design of Downlink Based on Pilot in Broadband Wireless Communication
[J]. Journal of Shanghai University（Natural Science Edition）.