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减格算法在LASMAX系统中的性能分析 被引量：1

Performance Analysis of Lattice-Reduction Algorithm in LASMAX Systems
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摘要 将减格(LR)算法与常规迫零(ZF)算法结合,应用到具有丰富多径的码分多址(CDMA)移动通信环境中.分析和仿真了LR辅助的ZF(LR-ZF)算法在1个具体系统LASMAX中的性能,结果显示这个新算法在运算复杂度开销增加不大的情况下,仍然能够很大程度地改善系统性能,特别是在高信噪比的情况下.因此,LR算法在移动多径环境中仍然可以用来提高系统的性能. The lattice-reduction （LR） aided schemes were adopted in the zero-forcing （ZF） algorithm （LR-ZF） in rich multipath mobile communication environments of code division multi-access （CDMA） systems. The performance of LR-ZF was simulated and analyzed in LASMAX systems. The results verify that the systems＇ performance is improved highly, particularly in high SNR, at the expense of a little complexity increase. So LR algorithm can be adopted in mobile communication systems with multipath channel
作者 张庆荣 王刚 孙宇昊 李道本
机构地区 北京邮电大学信息工程学院
出处 《北京邮电大学学报》 EI CAS CSCD 北大核心 2005年第6期52-56,共5页 Journal of Beijing University of Posts and Telecommunications
关键词 大区域同步 微波接入 码分多址 多入多出 迫零 减格-迫零 large area synchronous microwave access code division multi-access multi-input multi output zero-forcing lattice-reduction-aided zero-forcing
分类号 TN911.25 [电子电信—通信与信息系统]
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参考文献7

  • 1Yao Huan,Wornell G.Lattice-reduction-aided detectors for MIMO communication systems[A].IEEE Proc Global Communications Conference (GLOBECOM)[C].Taipei,Taiwan,2002,424-428.
  • 2Dirk Wubben,Ronald Bohnke.MMSE-based lattice-reduction for near-ML detection of MIMO systems[A].ITG Workshop on Smart Antennas[C].Munich,2004.18-19.
  • 3Windpassinger C,Fischer R F H.Optimum and sub-optimum lattice-reduction-aided detection and precoding for MIMO communications[A].Canadian Workshop on Information Theory[C].Ontario,2003.88-91.
  • 4Lenstra A K,Lenstra H W,Lovasz.L.Factoring polynomials with rational coefficients[J].Math Ann,1982,261:515-534.
  • 5Li Daoben.The perspectives of large area synchronous CDMA technology for the fourth-generation mobile radio[J].IEEE Communications Magazine,2003,41(3):114-118.
  • 6董江波,王刚,李道本.CDMA系统中MAP迭代多码检测技术的研究[J].北京邮电大学学报,2004,27(6):59-63. 被引量：5
  • 7倪志,李道本.非理想信道估计和相关Nakagami信道条件下空时发送分集的性能分析[J].北京邮电大学学报,2004,27(5):36-40. 被引量：3

二级参考文献11

  • 1Alouini M S, Abdi A, Kaveh M. Sum of gamma variates and performance of wireless communication systems over nakagami-fading channels[J]. IEEE Trans on Vehicul Tech, 2001,50(6):1471-1480.
  • 2Alamouti S M. A simple transmit diversity technique for wireless communications[J]. IEEE Journal on Select Areas in Communications, 1998,16(8):1451-1458.
  • 3Tarokh V, Jafarkhani H, Calderbank A R. Space-time codes from orthogonal dessigns[J]. IEEE Trans on Inform Theory, 1999,45:1456-1467.
  • 4Zhou J, Kikuchi H, Sasaki S, Muramatsu S, Onozato Y. Performance inverstigation of two transmit diversity schemes with perfect/imperfect channel evaluation in wireless communications[J]. IEICE Trans Commun, 2002,e85-b(10):1957-1965.
  • 5Stege M, Bronzel M, Fettweis G. On the performance of space-time-blockcodes[A]. IEEE Vehicular Technology Conference (VTC'01)[C]. Spring: 2001.3:2282-2286.
  • 6Proakis J G. Digital Communications[M]. 3rd Edition New York: McGraw Hill, 1995.
  • 7Grant J,Alexander P D.Randomly selected spreading sequences for coded CDMA[A].IEEE Int Symp O Spread Spectrum Techniques and Applications[C].1996.54-57.
  • 8Jana R,Wei L.Bounds for minimum euclidean distance for coded multiuser CDMA systems[A].IEEE Int Symp O Spread Spectrum Techniques and Applications[C].1996.
  • 9Giallorenzi T R,Wilson S G.Multiuser ML sequence estimator for convolutionally coded asynchronous DS-CDMA systems[A].IEEE 44th Vehicular Technology Conference[C].1994.770-774.
  • 10Reed M C,Schlegel C B,Alexander P D.Iterative multiuser detection for CDMA with FEC:near single user performance[J].IEEE Transmission Communication,1998,4:1693-1699.

共引文献6

同被引文献6

  • 1董江波,王刚,李道本.CDMA系统中MAP迭代多码检测技术的研究[J].北京邮电大学学报,2004,27(6):59-63. 被引量：5
  • 2林成森.数值计算方法[M].北京:科学出版社,2001.173-181.
  • 3Cihan T,Ali A,Giannakis G,et al.Estimation of Doppler spread and signal strength in mobile communications with applications to handoff and adaptive transmission[J].Wireless Commun Mob Comput,2001,1(2):221-242.
  • 4Sun Qinfang.Effect of channel estimation error on the performance of MIMO and CDMA with multiuser detection[D].CA:The Department of Electrical Engineering,Stanford University,2001.
  • 5Wang Gang,Li Yonghui,Dong Jiangbo,et al.Channel estimation based on continuous pilot channel with regression in LAS-CDMA[C]∥2003 IEEE 58TH Vehicular Technology Conference.Florida:IEEE Press,2003:2391-2395.
  • 6Li Daoben.The perspectives of large area synchronous CDMA technology for the fourth-generation mobile radio[J].IEEE Communications Magazine,2003,41(3):114-118.

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北京邮电大学学报
2005年 第6期

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