[1]宋荣方,毕光国.WCDMA上行链路空时接收机的研究[J].东南大学学报(自然科学版),2003,33(1):9-12.[doi:10.3969/j.issn.1001-0505.2003.01.003]
 Song Rongfang,Bi Guangguo.Study of space-time receiver in WCDMA uplink[J].Journal of Southeast University (Natural Science Edition),2003,33(1):9-12.[doi:10.3969/j.issn.1001-0505.2003.01.003]
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WCDMA上行链路空时接收机的研究()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
33
期数:
2003年第1期
页码:
9-12
栏目:
信息与通信工程
出版日期:
2003-01-20

文章信息/Info

Title:
Study of space-time receiver in WCDMA uplink
作者:
宋荣方1毕光国2
1 南京邮电学院通信工程系,南京 210003; 2 东南大学无线电工程系,南京 210096
Author(s):
Song Rongfang1 Bi Guangguo2
1 Department of Telecommunication Engineering, Nanjing University of Posts & Telecommunications, Nanjing 210003, China
2 Department of Radio Engineering, Southeast University, Nanjing 210096, China
关键词:
码分多址 Rake接收 空时处理 天线阵
Keywords:
CDMA Rake receiver space-time processing antenna array
分类号:
TN911
DOI:
10.3969/j.issn.1001-0505.2003.01.003
摘要:
提出了宽带码分多址(WCDMA)系统基站中采用含天线阵的空时接收机结构,该接收机采用基于最大比合并的“天线阵波束形成——Rake接收”级联方式.对该接收机在多径衰落信道下的性能进行了研究,基于WCDMA上行链路模型,分析了干扰加噪声的统计特性,导出了误比特率表达式,并在不同角度扩展情况下进行了讨论.数值模拟结果显示采用天线阵可改善系统性能,即系统容量与天线数成正比,而增加角度扩展和阵元间距获得的空间分集增益能提供额外的性能改善.
Abstract:
An antenna array-based base station space-time receiver structure for wideband code division multiple access(WCDMA)system is proposed. The receiver uses an antenna array beamformer — Rake structure with maximum ratio combining. The performance of the proposed receiver in multi-path fading channels is evaluated. Based on WCDMA uplink model, the statistics of interference plus noise is analyzed and the expression of bit error rate is derived and discussed in the case of different angle spreads. Numerical results show the system capacity is proportional to the number of antennas. They also show an additional performance improvement due to space diversity gain provided by angle spreads and antenna separation.

参考文献/References:

[1] Paulraj A,Papadias B.Space-time processing for wireless communications[J].IEEE Signal Processing Magazine,1997,14(11):49-83.
[2] Kohno R.Spatial and temporal communication theory using adaptive antenna array [J]. IEEE Personal Communication Magazine, 1998,5(2):28-35.
[3] Naguib A F,Paulraj A.Performance of wireless CDMA with M-ary orthogonal modulation and cell site antenna arrays [J].IEEE Journal on Selected Areas in Communications, 1996,14(9):1770-1783.
[4] Shinya Tanaka,Mamoru Sawahashi,Fumiyuki Adachi.Pilot symbol-assisted direction-directed coherent adaptive array diversity for DS-CDMA mobile radio reverse link [J]. IEICE Transactions on Fundamentals, 1997,E80-A(12):2445-2454.
[5] Shinya Tanaka,Assushi Harada,Mamoru Sawahashi,et al.Experiments on coherent adaptive antenna array diversity for wideband DS-CDMA mobile radio [J].IEEE Journal on Selected Areas in Communications, 2000,18(8):1495-1504.
[6] Wang Jiangzhou.Broadband wireless communications:3G,4G and wireless LAN[M].Massachusetts:Kluwer Academic Publishers,2001.1-61.
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[2]苏杰,胡爱群,何振亚.CDMA系统功率控制的性能分析与改进[J].东南大学学报(自然科学版),1995,25(4):1.[doi:10.3969/j.issn.1001-0505.1995.04.001]
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备注/Memo

备注/Memo:
基金项目: 江苏省高校自然科学研究计划资助课题(2001省11).
作者简介: 宋荣方(1964—),男,博士,教授,rf_song@hotmail.com.
更新日期/Last Update: 2003-01-20