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Heterogeneous networks

In this paper, we compare two solutions available to mobile operators – passive DAS and active DAS – and discuss how they relate to traffic and capacity requirements, venue topologies, and manageability.

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The first time I heard about LTE in the 5 GHz license-exempt band, my reaction was: “Why do we need it? Wi-Fi works well, it’s cheap, and it’s in every device.”

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Download a presentation I gave in Barcelona at the C-RAN and Fronthaul Informa conference on the evolution of the requirements on small-cell backhaul and fronthaul. 

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Telefonica is an early mover and adopter when it comes to virtualization. It has worked with the ecosystem through ETSI’s standardization efforts, and in the open source community. But it also has short-term plans for commercial NFV deployments. I talked to Diego Lopez, Head of Technology Exploration at the Network Innovation and Virtualization Directorate at Telefonica, and the Chair of the Technical Steering Committee at the NFV ISG at ETSI.

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AT&T has been for a long time a very proactive proponent of SDN and NFV which are the key components of Domain 2.0. Our conversation with Tripps Tripathi, Director New Tech Prod Dev Eng, Services Design and Development, AT&T, gives us an update on AT&T Domain 2.0 and on the learnings from the initial stages of the transition to a virtualized network.

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SpiderCloud takes NFV to the edge – in carrier-driven small-cell deployments in the enterprise, where there are many advantages to run some applications locally in a virtualized environment.

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Ruckus Wireless takes NFV to the managed WLAN services that operators are increasingly keen to offer to the enterprise. Virtualization of WLAN services can strengthen the business case and enable operators to cost-effectively support a wider set of enterprise customers that includes small-medium businesses.

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Over the last year I have been blessed to be able to avoid dealing with "5G." Instead, I have been working on how operators can make the best use of the resources that are available already. Among them, traffic management has a prominent role.

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I just finished a white paper that compares the TCO for fronthaul and backhaul. In the model developed for the paper, I looked at the combined per-bit costs macro- and small-cell layer.

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