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Volume 26 Issue 4
Apr.  2004
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Jin Liang-nian, Wang Ying-sheng, Zou Chuan-yun. Performance of Indoor Infrared PPM-CDMA Systems Using Modified Prime Sequence Codes[J]. Journal of Electronics & Information Technology, 2004, 26(4): 525-530.
Citation: Jin Liang-nian, Wang Ying-sheng, Zou Chuan-yun. Performance of Indoor Infrared PPM-CDMA Systems Using Modified Prime Sequence Codes[J]. Journal of Electronics & Information Technology, 2004, 26(4): 525-530.

Performance of Indoor Infrared PPM-CDMA Systems Using Modified Prime Sequence Codes

  • Received Date: 2002-11-17
  • Rev Recd Date: 2003-01-28
  • Publish Date: 2004-04-19
  • The performance of infrared wireless synchronous Code Division Multiple Ac-cess(CDMA) with Pulse Position Modulation(PPM) signaling systems without optical hard limiter and with optical hard limiter using modified prime sequence codes as signature codes is analyzed. The upper bound on the bit error probability of systems without optical hard limiter and with optical hard limiter are derived taking into account the effect of multiple-user interference, the photodetector shot noise and thermal noise. Numerical results show that the performance of systems with optical hard limiter is superior to that without optical hard limiter.
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  • Elmirghani J M H, Cryan R A. New PPM-CDMA hybrid for indoor diffuse infrared channels[J].Electronics Letters.1994, 30(20):1646-1647[2]Matsuo R, Outsuki T, Sasase I. Performance analysis of indoor infrared wireless systems using PPM CDMA with linealizer with dead-zone and PPM CDMA with hard-limiter on diffuse channels. IEEE International Conference on Communications, Helsinki, Finland, 2001, 7: 2016-2020.[3]Shalaby M H. Chip-level detection in optical code multiple access[J].Journal of Lightwave Technology.1998, 16(6):1077-1087[4]Shalaby M H. Direct detection optical overlapping PPM-CDMA communication systems with double optical hardlimiter[J].Journal of Lightwave Technology.1999, 17(7):1158-1165[5]Lee D M, Kahn J M. Coding and equalization for PPM on wireless infrared channels[J].IEEE Trans. on Comm.1999, 47(2):255-259[6]Kowng W C, Perrier P A, Prucnal P R. Performance comparison of asynchronous and synchronous code-division multiple-access techniques for fiber-optic local area networks[J].IEEE Trans. on Comm.1991, 39(11):1625-1633[7]Sato K, Outsuki T, Sasase I. Performance of optical direct-detcetion cdma system using prime sequence codes. IEEE International Conference on Communications, Seattle, WA, USA, 1995, 3:1312-1316.
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