Title :
Design and analysis of diversity optical CDMA
Author :
Chung-Yu Chang ; Guu-Chang Yang ; Je-Wei Su ; Cheng-Yuan Chang ; Kwong, Wing C.
Author_Institution :
Dept. of Electr. Eng., Nat. Chung Hsing Univ., Taichung, Taiwan
Abstract :
In this paper, a “diversity” on-off-keying (OOK) optical code-division multiple-access (O-CDMA) scheme is proposed and analyzed. The scheme transmits multiple copies of an optical code per data bit of one in order to improve code performance. Our results show that the diversity OOK O-CDMA scheme reduces error probability with little degradation on spectral efficiency, under the assumptions of similar code power and bandwidth expansion as the conventional OOK O-CDMA scheme. An important application of our diversity scheme, which solves the low code-cardinality problem of heavy-weight optical codes, is finally discussed.
Keywords :
amplitude shift keying; code division multiple access; diversity reception; probability; bandwidth expansion; code performance; code power; data bit; diversity OOK O-CDMA scheme; diversity on-off-keying optical code-division multiple-access; diversity optical CDMA; error probability; heavy-weight optical codes; low code-cardinality problem; spectral efficiency; Adaptive optics; Error probability; Integrated circuit modeling; Integrated optics; Multiaccess communication; Optical fiber LAN;
Conference_Titel :
Photonics Global Conference (PGC), 2012
Conference_Location :
Singapore
Print_ISBN :
978-1-4673-2513-4
DOI :
10.1109/PGC.2012.6457968
