Diseño e implementación de anillos de transmisión óptica sdh
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Universidad Distrital Francisco José de Caldas
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La implementación de redes de transmisión en Colombia es una actividadtecnológica donde los proveedores de telecomunicaciones enfrentannuevos desafíos de crecimiento. En el año 2009, el acceso a Internet presentóun crecimiento del 26% al lograr un total de 2.746.816 subscriptores,77% de los cuales corresponde a suscriptores de acceso dedicado,distribuidos por tecnologías de la siguiente forma: 64,07% pertenece aconexiones xDSL, 2,11% a conexiones WiMAX e inalámbricos, y 32,3%a tecnologías por cable, contando con altas demandas de soluciones devoz y datos. Se proyecta que para el año 2012 el crecimiento de estosservicios impondrá un incremento del tráfico del 46%. Por tanto, losoperadores de telecomunicaciones se verán obligados a incrementar lacapacidad de sus redes de transporte, especialmente en aquellas zonasen que dichas redes operan con tecnología PDH (Plesiocronous DigitalHierarchy), pues no es posible responder al tráfico generado por lossuscriptores. El presente artículo compara las tecnologías de transmisión,Metro Ethernet, DWDM (Dense Wavelenght Division Multiplex)y SDH (Plesiocronous Digital Hierarchy), considerando: método de accesoal medio, velocidad de transmisión, longitud de onda usada, anchode banda, capacidad y conectividad con el backbone. Se concluye que,debido a que SDH se adapta completamente con PDH, es la tecnologíade transmisión más versátil para el diseño e implementación de anillosde transmisión óptica en enlaces seleccionados en Bogotá, y debido a launiversalidad de la metodología de implementación propuesta, en otrossitios, en el futuro inmediato.
The transmission network implementation in Colombia, is a technological activity where telecommunication providers face new growing quests. In 2009, access to internet showed an increase of 26% to a total subscriber 2’746 .816 of which 77% is dedicated access subscribers, distributed by technologies as follows: 64.07% belongs to xDSL connections, 2.11% to WiMAX and Wireless connections, and 32.3% to Cable Technologies, counting with high demands for voice and data solutions. It is projected that by 2012, these services and its growth impose a traffic increasing of 46%. Therefore, telecommunications operators will be forced to increase the capacity of their transport networks, especially in areas in which these networks operate with PDH technology (Plesiocronous Digital Hierarchy), because it is not possible to respond to traffic generated by subscribers. This article compares the transmission technologies, Metro Ethernet, DWDM (Dense Wavelength Division Multiplex) and SDH (Synchronous Digital Hierarchy), considering: medium access method, transmission speed, wavelength used, bandwidth, capacity and connectivity to the backbone, concluded that, because SDH is fully adapted to PDH, is the most versatile transmission technology for the design and implementation of optical transmission ring in selected links in Bogota and because of the universality of the proposed implementation methodology, elsewhere in the immediate future.
The transmission network implementation in Colombia, is a technological activity where telecommunication providers face new growing quests. In 2009, access to internet showed an increase of 26% to a total subscriber 2’746 .816 of which 77% is dedicated access subscribers, distributed by technologies as follows: 64.07% belongs to xDSL connections, 2.11% to WiMAX and Wireless connections, and 32.3% to Cable Technologies, counting with high demands for voice and data solutions. It is projected that by 2012, these services and its growth impose a traffic increasing of 46%. Therefore, telecommunications operators will be forced to increase the capacity of their transport networks, especially in areas in which these networks operate with PDH technology (Plesiocronous Digital Hierarchy), because it is not possible to respond to traffic generated by subscribers. This article compares the transmission technologies, Metro Ethernet, DWDM (Dense Wavelength Division Multiplex) and SDH (Synchronous Digital Hierarchy), considering: medium access method, transmission speed, wavelength used, bandwidth, capacity and connectivity to the backbone, concluded that, because SDH is fully adapted to PDH, is the most versatile transmission technology for the design and implementation of optical transmission ring in selected links in Bogota and because of the universality of the proposed implementation methodology, elsewhere in the immediate future.
Palabras clave
PDH, SDH, DWDM, Fast Ethernet, Metro Ethernet, Transport Networks, PDH, SDH, DWDM, FAST Ethernet, Metro Ethernet, redes de transporte