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Thread: Synchronization in packet-based networks: challenges and solutions

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    Default Synchronization in packet-based networks: challenges and solutions

    Synchronization in packet-based networks: challenges and solutions pdf

    Access transport networks are evolving from dedicated-service, narrowband and highly bit-optimized PDH/SDH-based networks to multiservice, wideband and over-provisioned packet-based networks. At the same time,the demand for greater bandwidth continues to grow unabated. This demand is being fueled by fi xed and mobile broadband as well as offerings such as IPTV, video on demand (VoD) and peer-to-peer services.
    For high-capacity low-cost services to be commercially viable, operators must decrease their per-bit production costs. Accordingly, access networks are destined to become large bit pipes for transporting multiple services. Apart from providing a stipulated quality of service (QoS) and standard traffi separation, they will offer very little functionality. To enable the use of standard, cost-effective transport equipment, the
    services that use access networks may put only limited requirements on transport. The passing of reference synchronization sources over transport networks also becomes an issue as operators move fromtime division multiplexing (TDM) to asynchronous transport technologies.

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