Residential 10G PON (Passive optical networking) optimization wait until 2020: Broadband trends study

The operational cost and complexity to connect a FTTH subscriber can be further reduced to accelerate the expansion of 10G broadband services. Broadband trends recently concluded a global service provider survey of  broadband operators regarding their plans to deploy 10G PON technology within their network. 10G PON offers operators the opportunity to offer both higher bandwidth and symmetrical services, while simultaneously addressing the bandwidth, latency and the densification requirements of the emerging 5G network.

According to a Broadband trends survey 10G PON market approach presents the highest growth engine for the broadband access equipment market over the next four years. Its  ability to converge services over a single infrastructure and reuse existing ODN resources are the top two drivers for 10G PON deployments.Unlike previous PON networks which primarily served residential customers initial deployments of 10G PON technology will target business services support, with residential services not a target until 2020, said most respondents to a study Broadband trends recently conducted.

Overall, The GPON remains the most prevalent FTTH technology.  However, the ability of 10G PON to  support converged architectures will prove the major reason for 10G PON roll outs, says the market research firm in its new “Global Service Provider 10G PON Deployment Strategies” survey report. Its current bandwidth capabilities and its asymmetric characteristics do not provide enough capacity to support the expected growth in bandwidth demand.  Therefore, operators are looking at the latest iterations of the PON standard – 10G PON – for their future network requirements.  At present, there are a variety of 10G options available to operators – including 10G EPON, XG-PON, XGS-PON and NG-PON2.

The primary value of NG-PON2 is the ability to servea mix of residential, business and backhaul services over a common Optical Distribution Network (ODN) using a mix of point-to-point and point-to-multipoint technologies. NG-PON2 is considered the ‘ultimate” future proof technology – offering multiple wavelengths supporting up to 40Gbps (and even higher in the future!) and capable of serving multiple/different segments on each individual wavelength. Additionally, the ability to bond wavelengths together to offer even higher bandwidth options, positions this technology well for future bandwidth growth.

Additionally, Operators currently prefer XGS-PON over such alternatives as 10G-EPON, XG-PON, and NG-PON2, reports Broadband trends. Survey respondents indicated that they don’t plan to deploy NG-PON2 until at least 2020, if not later, the company added. The cost of 10G PON remains the greatest concern among operators, the survey revealed. Therefore, business services support as well as the opportunity to converge other services on the network, such as 5G mobile, offer the best opportunity for return on investment, Broadbandtrends points out. The addition of residential services on such infrastructures may be feasible, as operators only plan to offer 2- to 5-Gbps services to residents using 10G PON infrastructures, the survey indicates.

According to the survey, operators plan to evolve toward next-generation PON architectures in a step-wise fashion, with NG-PON2 being the current highest capacity offering. Standards for even greater capacity are in development (see, for example, “IEEE ponders WDM-PON, 25G PON for next generation EPON”); however, the survey indicates that such technology will not be needed until at least 2024.
The “Global Service Provider 10G PON Deployment Strategies” survey included interviews with 36 incumbent and competitive operators in all major regions. Broadbandtrends’ report on the survey results, available for $2495, provides an overview of the survey results as well as commentary on notable regional differences found in them. It can be ordered online.

keywordS: PON( Passive optical networking),

ODN (Optical Distribution Network)