Title :
Beat noise in a non-coherent optical CDMA system
Author :
Demeechai, T. ; Sharma, A.B.
Author_Institution :
Dept. of Telecommun. Eng., Mahanakorn Univ. of Technol., Bangkok, Thailand
Abstract :
In optical CDMA systems, many optical waves are simultaneously incident on each receiver photodiode. Since the photodiode also acts as a square-law detector to the optical fields, beat noise can occur in the passband of the receiver. We show that considerable amount of beat noise can occur in even a non-coherent system.
Keywords :
code division multiple access; multiuser channels; optical noise; optical receivers; optical signal detection; photodiodes; SIK correlator receiver; beat noise; noncoherent optical CDMA system; optical fields; optical waves; receiver passband; receiver photodiode; sequence- inversion keyed CDMA; square-law detector; Multiaccess communication; Optical amplifiers; Optical filters; Optical noise; Optical polarization; Optical receivers; Passband; Photodiodes; Semiconductor device noise; Stimulated emission;
Conference_Titel :
Communication Systems, 2002. ICCS 2002. The 8th International Conference on
Print_ISBN :
0-7803-7510-6
DOI :
10.1109/ICCS.2002.1183263
