Observatorio de I+D+i UPM

Descripción
An analysis of a simple way to design generalised optical orthogonal codes to be used in optical codedivision multiple-access systems is presented. They are random optical codes (ROCs). This novel family is especially suitable for optical networks with a large number of channels, low bit rate requirements, energy limitations and packed data. For example, sensor networks need these requirements. An application in an intra-spacecraft telecommand and telemeasurement (TC/TM) optical wireless network is also described. ROCs are selected randomly from all possible rearrangements. However, its probability of error is adequate in many useful parameter ranges. Moreover, ROCs present features not found in other families of codes such as huge cardinality and parameter adaptation to the system necessities. Here, the main contribution is to present a method to optimise the values of the parameters. Furthermore, the optimal weight of the codes is found, given two out of the other set of parameters, that is, the length, the number of users and the probability of error. In addition, a comparison between the length and the power consumption of ROCs and prime codes is also developed.
Internacional	Si
JCR del ISI	Si
Título de la revista	IET Communications
ISSN	1751-8628
Factor de impacto JCR	0,345
Información de impacto
Volumen	3
DOI	10.1049
Número de revista	0
Desde la página	1392
Hasta la página	1401
Mes	ENERO
Ranking

Esta actividad pertenece a memorias de investigación

• Autor: Francisco Jose Lopez Hernandez (UPM)
• Autor: Enrique Poves Valdés (UPM)

• Creador: Centro o Instituto I+D+i: Centro de Domótica Integral, CEDINT
• Departamento: Tecnología Fotónica