Cable Multiple Service Operators (MSOs) continue to dominate the broadband service market, holding the lion’s share of the residential subscriber market in the United States. According to a study, cable companies are projected to occupy a 62 percent market share in the country by 2026. However, MSOs are under increasing pressure to modernize their networks to deliver new services, enhance customer experience, and achieve operational efficiencies. The question often asked by experts is how to make the transition from current networks to fiber as efficiently as possible with minimum complexity.
Modernizing Network Infrastructure for Improved Customer Experience
To remain ahead of the competition and satisfy customers, MSOs need to modernize their networks by upgrading their technology to the latest standards. Modernizing networks would enable MSOs to provide better broadband services with higher bandwidth, speeds, and larger capacity to handle the exponential growth in the volume of data being transmitted. With the increased use of video conferencing, streaming services, and cloud computing, consumers expect faster and more reliable services than ever before.
Updates to HFC and DOCSIS Networks as a Transitory Path to Fiber-Ubiquitous World
Hybrid Fiber/Coax (HFC) and Data Over Cable Service Interface Specification (DOCSIS) are technologies that offer a robust path to a fully fiber-connected world. MSOs can upgrade their HFC and DOCSIS networks incrementally, avoiding the need for an expensive overhaul of their existing infrastructure. HFC networks use both fiber and coaxial cables to securely connect to households. DOCSIS is a protocol that uses the coaxial cable to transport data to customers. The latest version, DOCSIS 4.0, delivers speeds of up to 10Gbps.
Simplifying the transition to fiber with minimal complexity. Although fiber provides higher speeds and capacity, the process of moving from HFC and DOCSIS to a fiber-connected world can be complex. MSOs are exploring practical approaches to make the transition smoother. The introduction of Passive Optical Network (PON) technology provides an alternative and efficient way to transition to fully-fibered networks.
PON Technology: Point-to-Multipoint Access Network
PON is a technology that utilizes fiber-optic cables to provide services to multiple users via a point-to-multipoint access network. PON has an architecture that includes an Optical Line Terminal (OLT), an Optical Network Terminal (ONT), and a Passive Optical Splitter. The OLT connects the network to the internet, while the ONT serves as a handover point from optical fiber to traditional coaxial cable or Ethernet.
PON Technology’s Evolution and Opportunities for MSOs
Over time, PON technology has undergone significant evolution, leading to the emergence of 10G-EPON (10 Gigabit Ethernet PON) and 10G-GPON (10 Gigabit Passive Optical Network) standards. These latest iterations of PON technology offer higher bandwidths and faster speeds than previous versions. MSOs that embrace this technology can leverage the Ethernet architecture to deploy long-lasting platforms capable of evolving through several technology cycles.
Technical Details of PON Technology and Pluggables for 10G, 25G, and 100G
For MSOs, the adoption of 10G-EPON and 10G-GPON technology presents a deployment challenge yet offers an opportunity to provide higher speeds and greater throughput on optical networks than previously possible. The pluggables are small components that fit into 10G SFP+ optical transceiver routing and switching ports. This approach enables networks to switch flexibly in response to emerging trends. Furthermore, the process is scalable, allowing MSOs to transition quickly and efficiently to 25G and 100G PONs when they become available.
Provisioning over EPON or GPON for software shim layer
DOCSIS interfaces with other systems, and provisioning is an essential function that ensures devices operate in tandem with their connected systems. Using DPoE and DPoG specifications can simplify network management and provisioning. A software shim layer with interfaces into a DOCSIS operations support system can apply the functions of DPoE and DPoG specifications to networks.
Virtual Network Functions in the Cloud for Agility, Reliability, and Scalability
MSOs can use virtualization to deliver network functions in the cloud, providing the agility, reliability, and scalability needed to deliver high-value broadband services to their residential and enterprise customers. This capability is significant because it allows MSOs to deliver services dynamically and quickly, according to user needs. Through virtualization and cloud-based service delivery, MSOs can optimize network resources and create cost-effective, scalable, and highly efficient platforms.
The introduction of PON technology offers a viable pathway to successfully transition to fiber-based networks. By leveraging the Ethernet architecture, MSOs can build agile networks that can evolve through various technology cycles. The question remains, how efficient will the adoption of new technologies be for MSOs? The answer lies in MSOs’ ability to continually innovate and modernize their networks to meet customer demands while staying ahead of the competition. Ultimately, MSOs that achieve more with less will seek varied ways to achieve their vision for 10G and beyond with networks that are efficient, agile, and ready to take the leap to upcoming technologies.