2026-06-23T23:15:18Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/97432024-11-28T01:05:11Zcom_10259_9737com_10259_5086com_10259_2604col_10259_9738

González Hernández, Oswaldo Martín González, Jesús Ángel Poves Valdés, Enrique Rodríguez Pérez, Silvestre López Hernández, Francisco José 2024-11-27T11:35:26Z 2024-11-27T11:35:26Z 2008-09 http://hdl.handle.net/10259/9743 Comunicación presentada en: XXIII Simposium Nacional de la Unión Científica Internacional de Radio (URSI). En Madrid (Spain), 22-24 septiembre 2008 In this paper, an adaptive optical codes-based system is proposed for communications over the indoor wireless optical channel when large numbers of users access to the channel simultaneously. The designed system uses a code-division multiple access scheme based on the named random optical codes (ROCs). The characteristics of this kind of optical codes are described. Several results about its performance over noisy indoor wireless optical channels are also presented. Finally, a code-division multiple access system which is able to adapt its data rate to the number of users which are accessing simultaneously the channel in each moment is described. The obtained results show as the proposed system is able to maintain a target bit error rate adapting its data throughtput when the number of users in the optical environment changes. Este trabajo ha sido financiado por el plan nacional del Ministerio de Educacion y Ciencia (TEC2006-13887-C05-01 ´ y TEC2006-13887-C05-05). application/pdf spa Radio Telecomunicaciones Telecommunication Acceso múltiple sobre canales ópticos no guiados basado en códigos ópticos aleatorios info:eu-repo/semantics/conferenceObject info:eu-repo/semantics/acceptedVersion info:eu-repo/semantics/openAccess