Network Migration Strategies (2017)

By Ayham Al-Banna, Tom Cloonan & Jeff Howe, ARRIS

The cable industry has achieved tremendous progress in offering high speed data since the first DOCSIS specification was released in 1997. MSOs had the dual goal of meeting customers’ demand for higher speeds and defending itself against competitive threats of speed wars with alternate technologies. As MSOs continue their network evolution, they are currently faced with no clear path since many options are available to augment their existing HFC networks.

For example, Figure 1 shows multiple potential evolutionary paths that the MSOs can select. The network architecture (e.g., I-CCAP/DAA/PON) is plotted against the topology which is presented here as the depth of the fiber in the network (e.g., HFC, FTTLA/FTTC, FTTT, and FTTH).

The transitions between different phases of the same architecture or moving from one architecture to another will depend on the priorities and conditions within an MSO. Different MSOs may select to transition to a particular alternative at different times and different locations. For example, current HFC networks using the normal practice of node splits going to Node+0 (N+0) may be able to continue that practice until year 2025. At the same time, some MSOs may choose to move to an N+0 architecture in the immediate future. Similarly, if an Extended Spectrum DOCSIS technology develops, MSOs may choose to move to FTTT architecture as soon as 2025 in order to access even higher speeds. Finally, it is assumed that most MSOs may eventually choose to migrate their networks to FTTH over the next decade or two.

Note that the capacities of all architectures (I-CCAP/DAA/PON) in an FTTH environment in the 2030 time frame are assumed to be similar (~400 Gbps+) because those architectures will likely leverage similar technologies at that time.

Given the large combinations of the various network architectures (I-CCAP/DAA/PON) shown in Figure 1 and different fiber depth topologies, selecting the appropriate architecture/topology transition path is not a trivial task. The challenge at hand is to understand the available technology enablers to assist in selecting the appropriate transition path. These technology enablers include node splitting, DAA, DOCSIS 3.1, spectrum management and reclamation, FTTx, Selective Subscriber Migration (SSM), extended spectrum DOCSIS, Full Duplex DOCSIS (FDX), and others. This paper will examine the forces that are driving MSOs to provide symmetric multi-Gigabit per second service, the technologies that will assist them in getting to those services, and the factors that will help guide them down the alternative migration paths that are available.

By clicking the "Download Paper" button, you are agreeing to our terms and conditions.

Similar Papers

Network Migration Demystified In The DOCSIS 3.1 Era And Beyond
By Ayham Al-Banna, Tom Cloonan, and Frank O’Keeffe, ARRIS, and Dennis Steiger, nbn
2016
When Does the DOCSIS 3.1 TaFD Feature Increase the Capacity of My Network?
By Ayham Al-Banna, Ph.D. & Tom Cloonan, Ph.D., ARRIS
2017
Dynamic Steering Of Power-starved CMS, DSG-STBs, & MTAs
By Ayham Al-Banna, Tom Cloonan, ARRIS Group, Inc.
2010
Operational Considerations & Configurations for FDX & Soft-FDX
By Ayham Al-Banna, Ph.D., Frank O’Keeffe, Ph.D. & Tom Cloonan, Ph.D., Commscope
2019
Using DOCSIS To Meet The Larger Bandwidth Demand Of The
By Tom Cloonan, Ayham Al-Banna, and Frank O’Keeffe, ARRIS
2016
Discussion of DOCSIS 3.1 Deployment Migration
By Carol Ansley, Jeff Howe, ARRIS Group, Inc.
2014
Lessons From Telco & Wireless Providers: Extending The Life Of The HFC Plant With New Technologies
By Tom Cloonan, Ayham Al-Banna, Mike Emmendorfer, Zoran Maricevic, Frank O’Keeffe, and John Ulm, ARRIS Group, Inc.
2015
Wimax Links And OFDM Overlay For HFC Networks: Mobility And Higher Us Capacity
By Ayham Al-Banna, ARRIS Group, Inc.
2010
Capacity Planning, Traffic Engineering, and HFC Plant Evolution for the Next 25 Years
By Tom Cloonan, Ayham Al-Banna, Frank O’Keeffe & John Ulm, CommScope; Ruth Cloonan, BlueOpus
2019
Traffic Engineering in a Fiber Deep Gigabit World
By John Ulm & Tom Cloonan, ARRIS
2017
More Results >>