1 October 2006 Design and analysis of a dynamic spectral encoding code-division multiple-access communication system
Moh’d M. N. Hamarsheh, Mohamad Khazani Abdullah, S. Khatun, Hossam M. H. Shalaby
Author Affiliations +
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.
©(2006) Society of Photo-Optical Instrumentation Engineers (SPIE)
Moh’d M. N. Hamarsheh, Mohamad Khazani Abdullah, S. Khatun, and 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). https://doi.org/10.1117/1.2359455
Published: 1 October 2006
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Computer programming

Receivers

Optical filters

Phase shifts

Telecommunications

Light sources

Optical engineering

RELATED CONTENT


Back to Top