期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

MC-CDMA系统中基于QR分解的多址干扰消除算法 被引量：1

Multiaccess interference cancellation algorithm based on QR decomposition for MC-CDMA systems
下载PDF
导出
摘要 多址干扰是导致MC-CDMA系统误码性能下降的重要因素。为了消除多址干扰,提出基于接收信号功率排序和QR分解的多址干扰消除算法(Power-based MMSE Sorted QR Decomposition,P-based MMSE-SQRD)对MC-CDMA系统的上行链路进行检测。仿真结果显示,与传统的串行干扰消除算法相比,P-based MMSE-SQRD的误码性能有明显的提高,而且其复杂度也相对较低。 In MC-CDMA uplink,Multi-Access Interference（MAI） is one of the major performance degradation factors.In this paper,a multi access interference cancellation algorithm based on received signal power ordering and QR decomposition is proposed. Simulation results show that,the proposed algorithm outperforms traditional successive interference cancellation algorithm in terms of Bit Error Rate（BER）.Meanwhile,the complexity of the proposed algorithm is lower.
作者 姜立国 曹叶文
机构地区 山东大学信息科学与工程学院
出处 《计算机工程与应用》 CSCD 北大核心 2009年第30期88-91,共4页 Computer Engineering and Applications
基金 国家自然科学基金 No.60872023 山东省自然科学基金No.Y2007G35~~
关键词 多载波码分多址 QR分解 基于接收信号功率排序和QR分解的多址干扰消除算法 Multi-Carrier Code Division Multiple Access（MC-CDMA） QR decomposition Power-based MMSE Sorted QR Decomposition（P-based MMSE-SQRD）
分类号 TN914.53 [电子电信—通信与信息系统]
  • 相关文献

参考文献13

  • 1Fazel K.Performance of CDMA/OFDM for mobile communication system[C]//Universal Personal Communications : Gateway to the 21st Century Conference,2nd International Conference,Oct 10-12,1993,2:975-979.
  • 2Helard J F,Baudais J Y,Citeme J,et al.Linear MMSE detection technique for MC-CDMA[J].Electronics Letters,2000,36(7):665-666.
  • 3Hanzo L.Single and multi-carrier CDMA:Multi-user detection, space-time spreading,synchronization,networking,and standards[M]. New York : J Wiley, 2003.
  • 4Kleer F,Hara S,Prasad R,et al.Performanee evaluation of a successive interference cancellation scheme in a quasi-synchronous MC-CDMA system[C]//IEEE International Conference on Communications,ICC 98,7-11 June 1998 : 370-374.
  • 5Andrews J G,Meng T H Y.Performance of multi-carrier CDMA with successive interference cancellation in a multi-path fading channel[J].IEEE Transactions on Communications, 2004,52 (5) : 811-822.
  • 6Sarkiss M,Yuan-Wu Y.MAP-DFE detector for downlink V-BLAST MC-CDMA systems[C]//VTC 2006 Fall,Sept 2006:1-5.
  • 7Wubben D,Bohnke R, Rinas J,et al.Efficient algorithm for detecting layered space-time code[C]//Proc ITG Conference on Source and Channel Coding, Berlin, Germany, Jan 2002 : 399-405.
  • 8Lee H,Jeon H,Jung H,et al.Signal detection using log-likelihood ratio based sorting QR decomposition for V-BLAST systems[C]// IEEE 65th ,Vehicular Technology Conference 2007,22-25 April 2007 : 1881-1885.
  • 9Bohnke R,Wubben D,Kuhn V,et al.Reduced complexity MMSE detection for BLAST architecture[C]//Proc GLOBELCOM'03,2003,4: 2258-2262.
  • 10Singh C K,Prasad S H,Balsara P T.VLSI architecture for matrix inversion using modified Gram-Schmidt based QR decomposition[C]// VLSID'07, Jan 2007:836-841.

同被引文献7

  • 1Mehrkam M, Asli A Z.EM-based multi-user detection for ST- BC-MC-CDMA communication systems[C]//3rd International Conference on Signal Processing and Communication Systems, 2009,ICSPCS 2009,28-30 Sept 2009:1-6.
  • 2Yukawa M, Cavalcanta R L G, Yamada I.Efficient blind MAI suppression in DS/CDMA systems by embedded constraint par- allel projection techniques[J].IEICE Transactions on Fundamen- tals of Electronics, Communications and Computer Sciences, 2005, E88-A (8) : 2062-2071.
  • 3Luo Jun,Andrian J H,Zhou Chi,et al.Soft parallel interference cancellation for a turbo coded uplink MC-CDMA systemiC]// Wireless Telecommunications Symposium, 2008, WTS 2008, 24-26 April 2008:145-150.
  • 4Cavalcante R L G, Yamada l.Peak-to-average power ratio reduc- tion in OFDM systems by the adaptive projected subgradient method[C]//IEEE ICASSP 2008, Las Vegas, United States, 2008: 3061-3064.
  • 5Yukawa M, Slavakis K, Yamada I.Adaptive parallel quadrat- it-metric projection algorithms[J].IEEE Transactions on Audio, Speech and Language Processing,2007,15(5) : 1665-1680.
  • 6赵发勇,酆广增.基于恒模算法的天线阵多载波码分多址系统空频盲多用户检测[J].信号处理,2008,24(5):824-827. 被引量：1
  • 7王青云,赵力,乔杰,邹采荣.基于加权次梯度投影算法的数字助听器自适应声反馈抑制[J].信号处理,2009,25(4):519-525. 被引量：6

引证文献1

计算机工程与应用
2009年 第30期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部