Title :
Performance analysis of code division multiple access techniques in fiber optics with on-off and PPM pulsed signaling
Author :
Khansefid, Farhad ; Gagliardi, Robert ; Taylor, Herbert
Author_Institution :
Phys. Sci. Lab., New Mexico State Univ., Las Cruces, NM, USA
fDate :
30 Sep-3 Oct 1990
Abstract :
The performance of asynchronous code division multiple access (CDMA) fiber optics using noncoherent optical-signal processing is analyzed. The use of pseudo-orthogonal address codes with aperiodic and periodic correlation properties is explored for on-off and pulse position modulation (PPM). The performance of the schemes is analyzed using avalanche photodiodes (APD) in both signaling and address code formats. The bit error rate is evaluated in terms of system parameters, such as number of active users, weight and length of the address code, laser power, photodetector characteristics, and fiber length, by taking into account the effects of noise. The numerical results of these evaluations are presented
Keywords :
code division multiple access; codes; correlation theory; optical fibres; optical links; optical modulation; performance evaluation; pulse position modulation; signalling (telecommunication networks); APD; PPM pulsed signaling; address code length; address code weight; aperiodic correlation; avalanche photodiodes; bit error rate; code division multiple access; fiber length; fiber optics; laser power; noncoherent optical-signal processing; on-off modulation; performance analysis; periodic correlation; photodetector characteristics; pseudoorthogonal address codes; pulse position modulation; system parameters; Avalanche photodiodes; Bit error rate; Modulation coding; Multiaccess communication; Optical fibers; Optical modulation; Optical pulses; Performance analysis; Pulse modulation; Signal analysis;
Conference_Titel :
Military Communications Conference, 1990. MILCOM '90, Conference Record, A New Era. 1990 IEEE
Conference_Location :
Monterey, CA
DOI :
10.1109/MILCOM.1990.117546
