Chinese Journal of Quantum Electronics, Volume. 26, Issue 2, 252(2009)
Bit error performance analysis of two-dimensional QCC for optical code division multiple access systems
Based on one-dimensional quadratic congruence code performance of frequency-hop time-spread codes of QCC/QCC and QCC/OOC was analyzed. By calculating the number of hits of codewords in different situation, the mean value of cross-correlation is deduced, and the bit error ratio for two types of two-dimensional codes of QCC was simulated and compared. The simulation results show that compared with QCC/QCC, the performance of QCC/OOC is better and capacity is larger, but the number of frequency-hop chips is larger when the code length is determined. When the capacity of code family is determined, the performance of QCC/QCC with large value of ρ is better, but code length of it is longer.
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XIA Qing, LI Chuan-qi. Bit error performance analysis of two-dimensional QCC for optical code division multiple access systems[J]. Chinese Journal of Quantum Electronics, 2009, 26(2): 252
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Received: Jun. 30, 2008
Accepted: --
Published Online: May. 24, 2010
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CSTR:32186.14.