1 October 2006 Design and analysis of a dynamic spectral encoding code-division multiple-access communication system
Author Affiliations +
Optical Engineering, 45(10), 105005 (2006). doi:10.1117/1.2359455
Abstract
An optical dynamic spectral encoding code division multiple access (CDMA) communication system is proposed. In this system, an electrically controlled tunable optical filter (TOF) is used to encode the modulated broadband light source. The code depends on the function set to the controller. Two-dimensional code, named functional code, is also proposed based on a shifted sine function. The function defines the dynamic coding pattern of the central wavelength of the transmitted narrowband optical signal. Thus, the system will allow for an easy reconfiguration of the transmitter without the need for a sophisticated encoder. At the receiver, a synchronized TOF with the same function is used as a decoder. The system is modeled and analyzed taking into account the multiple access interference, phase-induced intensity noise (PIIN), and thermal noise. The performance of this system is shown to be better compared with a fast frequency hopping (FFH) system and a spectral amplitude coding (SAC) system that uses either a Hadamard code, a modified quadratic congruence (MQC) code, or a modified frequency hopping (MFH) code.
Moh’d M. N. Hamarsheh, Mohamad Khazani Abdullah, S. Khatun, Hossam M. H. Shalaby, "Design and analysis of a dynamic spectral encoding code-division multiple-access communication system," Optical Engineering 45(10), 105005 (1 October 2006). http://dx.doi.org/10.1117/1.2359455
JOURNAL ARTICLE
5 PAGES


SHARE
KEYWORDS
Computer programming

Receivers

Optical filters

Phase shifts

Telecommunications

Light sources

Optical engineering

Back to Top