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Turbo-BLAST系统的分组高斯近似迭代检测算法 被引量:1

Group Gaussian approximation iterative detection for Turbo-BLAST
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摘要 给出了一种适用于Turbo-BLAST系统的低复杂度分组高斯近似迭代译码算法.该算法将各天线的发送信号分成两组,将其中一组信号的叠加看作干扰来检测另一组信号.为简化计算,利用随机交织的特点和中心极限定理,将干扰组的信号叠加近似为高斯分布随机变量,然后根据最大后验概率原则计算另一组信号的对数似然比.所提方法不仅可有效降低MIMO检测的计算复杂度,同时其性能也可逼近最优检测算法的性能. A low complexity group Gaussian approximation iterative detection for Turbo-BLAST is proposed. The proposed algorithm divides the transmitted signals into two groups. After assuming the superstition of the transmitted signals in one group in a Gaussian variable, the log-likelihood ratio of each bit in another group is calculated via maximum a posterior principle. The proposed algorithm can considerably decrease the receiver complexity. Furthermore, the performance of the new algorithm can also approach the optimal detection when the system has more receiver antennas than transmitter antennas.
出处 《西安电子科技大学学报》 EI CAS CSCD 北大核心 2007年第1期135-139,共5页 Journal of Xidian University
基金 国家自然基金资助项目(60502046 60472098) 西安电子科技大学研究生创新基金资助课题
关键词 贝尔实验室分层空时结构 分组检测 软输入软输出 高斯近似 Bell Lab Layered Space-Time(BLAST) group detection soft-input soft-output(SISO) Gaussian approximation
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  • 1Foschini G J, Gans M J. On l,lmits of Wireless Communications in a Fading Environment When Using Multiple Antennas[J]. Wireless Personal Commun Mag, 1998, 6(2): 311-335. 被引量:1
  • 2Telatar E. Capacity of Multi-antenna Gaussian Channels[J]. Tech Memo AT&T Bell Labs, 1995, 27(6): 648-665. 被引量:1
  • 3Tarokh V, Seshadri N, Calderbank A R. Sapce-time Codes for High Data Rate Wireless Communications: Performance Criteria and Code Construction[J]. IEEE Trans on Inform Theory, 1998, 44(3): 744-765. 被引量:1
  • 4Alamouti S. A Simple Transmit Diversity Technique for Wireless Communicaltons[J]. IEEE J Select Areas Commun, 1998, 16(5) :1451-1458. 被引量:1
  • 5Tarokh V, Jafarkani H, Calderbank A R. Space-time Block Codes Form Orthogonal Designs[J]. IEEE Trans on Inform Theory, 1999,45(5): 1456-1467. 被引量:1
  • 6Tarokh V, Jafarkhani H, Calderbank R A. Space-time Block Codes for High Data Rates Wireless Communications: Performance Results[J]. IEEE J Select Areas Commun, 1999, 17(2) : 451-460. 被引量:1
  • 7Foschini G J. Layered Space-time Architecture for Wireless Communications in a Fading Environment When Using Multiple Antennas[J]. BeLl Labs Technical Journal, 1996, 1(2): 41-59. 被引量:1
  • 8Naguib A F, Seshadri N, Calderbank R A. Space-time Coding and Singal-processing for High-data-rate Wireless Communications[J].IEEE Signal Processing Mag, 2000, 17(3): 77-91. 被引量:1
  • 9Li Hongbin, Lu Xuguang. Capon Multiuser Receiver for CDMA Ssytems with Space-time Coding[J]. IEEE Trans on Signal Processing,2002, 50(5) : I 193-I 204. 被引量:1
  • 10Bevan D D N, Tanner R, Ward C R. Space-time Coding for Capacity Enhancement in Future Generation Wireless Communications Networks[J]. IEE ELectronics Letters, 2000, 15(3): 801-811. 被引量:1

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  • 1Damen O, Chkeif A, Belfiore J. Lattice Code Decoder for Space-time Codes[J]. IEEE Commun Letters, 2000, 4(5) : 161-163. 被引量:1
  • 2Hochwald M B, BrinK S T. Achieving Near-capacity on a Multiple-antenna Channel[J]. IEEE Trans on Commun, 2003, 51(3): 389-399. 被引量:1
  • 3Jia Y, Andrieu C, Piechocki R J, et al. Gaussian Approximation Based Mixture Reduction for Near Optimum Detection in MIMO System[J]. IEEE Commun Letters, 2005, 9(11): 997-999. 被引量:1
  • 4Stefanov A, Duman T M. Turbo Coded Modulation for Systems with Transmit and Receive Antenna Diversity[C]//IEEE Global Telecommunications Conference. Rio de Janeiro, Brazil: IEEE, 1999: 2336-2340. 被引量:1

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