DocumentCode :
1132922
Title :
Complexities, error probabilities, and capacities of optical OOK-CDMA communication systems
Author :
Shalaby, Hossam M H
Author_Institution :
Dept. of Electr. Eng., Univ. of Alexandria, Egypt
Volume :
50
Issue :
12
fYear :
2002
fDate :
12/1/2002 12:00:00 AM
Firstpage :
2009
Lastpage :
2017
Abstract :
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.
Keywords :
amplitude shift keying; channel capacity; code division multiple access; error statistics; multiuser channels; optical correlation; optical modulation; optical receivers; bit error probability; chip-level receivers; code division multiple access; code-correlation constraint; code-correlation constraints; correlation systems; double optical hardlimiters; hardware implementation complexity; optical CDMA correlation receivers; optical OOK-CDMA communication systems; throughput capacity; Capacity planning; Correlators; Error probability; Hardware; Multiaccess communication; Optical devices; Optical fiber networks; Optical receivers; Optical signal processing; Throughput;
fLanguage :
English
Journal_Title :
Communications, IEEE Transactions on
Publisher :
ieee
ISSN :
0090-6778
Type :
jour
DOI :
10.1109/TCOMM.2002.806502
Filename :
1175478
Link To Document :
بازگشت