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基于最大值判决的OCDMA并行干扰抑制系统 被引量：1

OCDMA Parallel Interference Canceling System Based on Maximal Value Decision
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摘要 提出一种适用于光正交码作为地址码的光码分多址多用户干扰并行干扰抑制系统。该系统通过在发送端将比特"0"和比特"1"分别用一个光正交码和其移位变形来映射,接收端采用APD作为光电检测器,并采用最大值判决即通过比较比特"0"和比特"1"支路的大小来识别比特"1"和比特"0",从而实现用户间干扰的并行干扰抑制。分析了系统性能并进行仿真,仿真结果表明该系统的误码性能和常规光码分多址(OCDMA)系统相比,当接收光功率为-50 dBW时,可以改善5个数量级,并且接收光功率越大,改善量越大。 A novel parallel interference suppressing system for reducing inter-user interference in optical code division multiple access （OCDMA） is presented, which is adapted to the system optical orthogonal codes used as address codes. It adopts an optical orthogonal codes and its shifts as address codes of bit 0 and bit 1, respectively. APD is used as detector. Maximal value decision instead of threshold decision is used in receiver to further reduce inter-user interference. The fundamental of it is set forth; bit error probability of novel system is derived , analyzed and simulated. The simulation results show that bit error performance of the novel system can be 5 orders better than that of conventional system while received power is 50 dBW, and the bigger the received power is, the bigger the improvement is.
作者 李晓滨
机构地区 深圳大学信息工程学院
出处 《半导体光电》 EI CAS CSCD 北大核心 2007年第6期839-842,846,共5页 Semiconductor Optoelectronics
基金 深圳大学科研启动基金项目(200514)
关键词 光纤通信 码分多址 多用户干扰 光正交码 optical fiber communication CDMA inter-user interference optical orthogonal codes
分类号 TN929.11 [电子电信—通信与信息系统]
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参考文献10

  • 1Jou b L,Lee Y H. Synchronous optical CDMA system using tunable hard limiters [J]. J. Optical Commun. , 2003, 24 (6): 217-153.
  • 2Salehi J A. Code division multiple access technique in optical fiber network-part h fundamental principles [J]. IEEE Trans. on Commun., 1989, 37(8): 824-833.
  • 3Ohtsuki T, Sato K, Sasase I, et al. Performance analysis of direct-detection optical asynchronous CDMA systems with double optical hard-limiters [J]. J. Lightwave Technol., 1997,15(3). 452-457.
  • 4Ohtsuki T. Channel interference cancellation using electro-optic switch and optical hard limiters for direct detection optical CDMA system [J]. J. Lightwave Technol. , 1998, 16 (4): 520-526.
  • 5Len C L, Wu J S. A synchronous fiber-optic CDMA system using adaptive optical hard-limiter [J]. J. Lightwave Technol. , 1998, 14(8):1 393-1 403.
  • 6Ratnam J. Optical CDMA in broadband communication-scope and application [J]. Optical Commun. , 2002, 23(1). 11-21.
  • 7Liu M Y,Tao H W. Performance analysis of directdetection fiber-optic synchronous CDMA systems with parallel interference cancellers [ J ]. J. Optical Commun. , 2000, 21 (4): 147-153.
  • 8Liu M Y,Lai E, Lee Y H. Suppression of interference for fiber-optic synchronous code division multiple access networks [J]. J. Optical Commun. , 1998, 19 (4) : 126-132.
  • 9Kwon H M. Optical code division multiple access system-Part Ⅱ: multi-bits/sequence period OCDMA. [J]. IEEE Trans. on Commun. , 1994, 42(8) .2 592 - 2 599.
  • 10Chung F R K, Salehi J A, Wei V K. Optical orthogonal codes: design, analysis, and applications. [J]. IEEE Trans. on Inform. Theory, 1989, 35(3) : 595-604.

同被引文献8

  • 1JONATHAN P H,ANDREW M W.Advances in spectral optical code-division multiple-access communications[J].IEEE Journal of Selected Topics in Quantum Electronics,2007,13 (5):1351-1369.
  • 2WALDIMAR A,DANIEL P,AND JOS(E) C.Modeling of a time-spreading OCDMA system[J].Journal of Light Wave Technology,2008,26(7):768-775.
  • 3JOU Liang-lin,LEE Yan-han.Synchronous optical-CDMA systems using tunable hard limiters[J].J Opt Commun,2003.24(16):217-222.
  • 4CHEN J J,YANG G.CDMA fiber-optic systems with optical hardlimiters[J].J Light Wave Technology,2001,19(6):950-958.
  • 5SALEHI J A.Emerging OCDMA communication systems and data networks[J].Journal of Optical Network,2007,6 (9):1138-1178.
  • 6OKASSA-M' FOUBAT A,DAYOUB I,ROUVAEN J M.Optical communications:parallel interference cancellation in DS-CDMA optical networks using bias compensation[J].European Transactions on Telecommunications,2009,20(6):564-571.
  • 7TAWFIG E,HOSSAM M H S,SAHBUDIN S,et al.A novel successive interference cancellation scheme in OCDMA system[C] //Proc ICSE2006.Malaysia:Kuala Lumpur,2006:299-303.
  • 8WAKAFUJI K,OHTSUKI T.Direct-detection optical CDMA receiver with interference estimation and double optical hardlimiters[J].J Light Wave Technology,2003,21 (10):2182-2188.

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半导体光电
2007年 第6期

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