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Complexities, error probabilities, and capacities of optical OOK-CDMA communication systems

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1 Author(s)
Shalaby, H.M.H. ; Dept. of Electr. Eng., Univ. of Alexandria, Egypt

The complexity in the hardware implementation of traditional optical code-division multiple-access correlation receivers with double optical hardlimiters is discussed. A comparison with the implementation of chip-level receivers is presented as well. In addition, the bit error probabilities and the throughput capacities for both chip-level and correlation systems (without hardlimiters) are derived and evaluated under code-correlation constraints equal to one and two. Our results reveal that chip-level receivers are much simpler and their performances are competitive with that of traditional correlation receivers with double optical hardlimiters. Further, the throughput capacity of chip-level systems can be increased by almost a factor of 3.4 when increasing the code-correlation constraint from one to two.

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Communications, IEEE Transactions on  (Volume:50 ,  Issue: 12 )