Volume 37 Issue 9
Sep.  2011
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Wang Xuesong, Yang Xing, Xue Chunmei, et al. Phase coding technology used in MIMO-CDMA system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(9): 1059-1062,1069. (in Chinese)
Citation: Wang Xuesong, Yang Xing, Xue Chunmei, et al. Phase coding technology used in MIMO-CDMA system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(9): 1059-1062,1069. (in Chinese)

Phase coding technology used in MIMO-CDMA system

  • Received Date: 29 Apr 2010
  • Publish Date: 30 Sep 2011
  • In non-rich scattering propagation environment due to lack of angular spreading, non-uniform distribution of singular values of multiple in multiple out(MIMO) system transmission matrix causes a degradation of system capacity. To solve this problem a technology called phase coding was proposed. Phase coding transformed original singular channel transmission matrix to the non-singular matrix by creating multi-path deliberately. Distribution of transmission matrix singular values was improved and system capacity was improved as well. Using phase coding MIMO technology can be applied in the flat fading channel environment which has a very strong spatial correlation. So the application range of MIMO technology is expanded. Furthermore, MIMO channel can be transformed into parallel sub-channels without pre-coding at transmitter and feedback channel information from receiver, so system complexity is reduced. First theoretical analysis and basic principle of phase coding was discussed, followed with simulation results which verify theoretical analysis.

     

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  • [1] Foschini G J,Gans M J.On limits of wireless communications in a fading environment when using multiple antennas[J].Wireless Personal Communications,1998,6(3):311-335 [2] Foschini G J.Layered space-time architecture for wireless communication in a fading environment when using multi-element antennas[J].Bell Labs Technical Journal,1996,1(2):41-59 [3] Proakis J G.Digital communications[M].5th ed.Beijing:Publishing House of Electronics Industry,2009 [4] Hassibi B,Vikalo H.On the sphere-decoding algorithm I.expected complexity[J].IEEE Transactions on Processing, 2005,53(8):2806-2818 [5] Hassibi B,Vikalo H.On the sphere-decoding algorithm II.generalizations,second-order statistics,and applications to communications[J].IEEE Transactions on Signal Processing,2005,53(8):2819-2834 [6] Welch L R.Lower bounds on the maximum cross-correlation of signal[J].IEEE Transactions on Information Theory,1974,20(3):397-399 [7] Golay M J E.Complementary series [J].IRE Transactions on Information Theory,1961,IT-7:82-87 [8] Fan P Z,Suehiro N,Kuroyanagi N,et al.A class of binary sequences with zero correlation zone[J].Electronics Letters,1999,35:777-779 [9] 徐绍君,李道本.多径衰落信道下的扩频码设计与联合检测[J].通信学报,2004,25(4):15-22 Xu Shaojun,Li Daoben.Spectrum spread code design and joint detection in multi-path fading channel [J].Communication Journal,2004,25(4):15-22(in Chinese) [10] Tse D.Fundamentals of wireless communication [M].Beijing:Posts & Telecom Press,2009
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