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Volume 30 Issue 07
Jul.  2004
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Journal of Beijing University of Aeronautics and Astronautics  > 2004  >  30(07): 618-622.
Liu Jicheng, Shao Dingrong. Multi-access interference suppression in DS/FH communication system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2004, 30(07): 618-622. (in Chinese)
Citation: Liu Jicheng, Shao Dingrong. Multi-access interference suppression in DS/FH communication system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2004, 30(07): 618-622. (in Chinese)
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Multi-access interference suppression in DS/FH communication system

  • School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • Received Date: 06 Mar 2003
  • Publish Date: 31 Jul 2004
    Abstract
  • According to the thought of multi-users detection(MUD)used in direct sequence code division multi-access (DS-CDMA) system, partial parallel interference cancellation(PPIC) technology was put forward to suppress multi-access interference(MAI) in direct sequence/frequency hopping spread spectrum multi-access(DS/FH SSMA)after analyzing the effect on system performance by parallel interference cancellation(PIC). Bit error rate(BER) closed expression was deduced and up-limited expression of system performance estimation was also acquired. Simulation results demonstrate that PPIC technology can suppress MAI effectively in DS/FH SSMA, and system capacity can be improved. The simulation was accomplished under AWGN, system performance will deteriorates to some extent under fading channel and low signal noise ratio(SNR)condition.

     

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    • References(1)
  • [1] Patel P, Holtzman J. Analysis of a simple successive interference cancellation scheme in a DS-CDMA system [J]. IEEE Journal on Selected Areasin Communications, 1994, 12(5):796~807 [2]Kim J H,Kim S W. Partial successive interference cancellation in hybrid DS/FH spread spectrum multiple-access systems[J]. IEEE Trans on Communications, 2001,49(10):1710~1714 [3]Michael B R,Michael B,Steven P N. Comment on partial parallel interference cancellation for CDMA[J]. IEEE Transactions on Communications,1999, 47(5):658~661 [4]Gao Xue,Li Chengshu. Performance of partial parallel interference cancellation in DS-CDMA system with delay estimation error . PIMRC2000 .London, 2000.724~727
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