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Can we move away from physical layer competition

Can we move away from physical layer competition. Prof. David Payne Dr Marco Ruffini Trinity College Dublin. Problems with telecoms today a customer perspective. Services provided in contractual bundles. Customers locked into contracts for fixed periods.

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Can we move away from physical layer competition

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  1. Can we move away from physical layer competition Prof. David Payne Dr Marco Ruffini Trinity College Dublin

  2. Problems with telecoms todaya customer perspective • Services provided in contractual bundles. • Customers locked into contracts for fixed periods. • No mechanism for pick and mix of services. • No mechanism for access to multiple service providers .

  3. Problems with telecoms todaya network perspective • Bandwidth growth and cost of provision not matched by revenue growth. • Network resources not used to maximum efficiency. • Network services tend to be fixed bandwidth products.

  4. Problems with telecoms todaya regulation perspective • No clear path to avoid the digital divide. • Competition provided at physical layer. • No incentive for network investment. • Local Loop Unbundling a barrier to FTTP? • No mechanism for competition using shared resources. • No guidance for products and services for sharing resources.

  5. Standards perspective for competition and network services ITU-T Recommendation Y.2012

  6. Resource (e.g. B’width) Utilisation Issues Today’s Network interface ports Network Products: B’width Pipes Traffic Concentrators Access Pipes End Users Service Providers Network/s SP1 SP2 SPr SPN Average Traffic Pipe Size Fewer customers per aggregator: = low utilised access ports Access pipe bandwidth cannot be shared across users: = low utilisation

  7. DISCUS: Shared resources Traffic concentrators Shared Access Pipe Network interface ports Network Products: B’width Pipes End Users CPE Service Providers Network/s SP1 Bandwidth pipe assigned to one SP 512 to 1024 Users SP2 More users sharing access pipe and network port: = higher utilisation SPr Pipe more efficiently utilised SPN Bandwidth assignment determined by end users Network ports per user reduced: = lower cost and power

  8. DISCUS proposition: • End users share access pipe and interfaces. • Smaller SPs can connect via shared (access) pipes. • End Users have bandwidth assigned on demand. • Large SPs have wavelengths and capacity assigned • Reduced network ports – lower cost and lower power. • Can also support today’s pipe model – but less efficient. • Need shared network products and services to • Need regulatory environment that supports sharing infrastructure and resources.

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