HomeGrid Forum unveils VectorBoost open source software


The release of VectorBoost, an open source program for the GiGAWire profile that controls crosstalk prevention in broadband access networks, was announced by the HomeGrid forum. Using the GiGAWire profile, the initiative will accelerate the development of network solutions based on ITU-T G.hn standards extended to the multiple dwelling unit (MDU) environment, which includes large apartment complexes and office buildings, as well as single-family units. (SFU) and fiber extension scenarios. In order to accommodate many users using bundled wires, it has crosstalk attenuation and auto-pairing functions.

The G.hn access feature known as VectorBoost allows twisted-pair copper telephone cable to operate at its maximum efficiency even in the presence of crosstalk from other subscribers in the same filing cabinet. It can run locally on a GAM (G.hn Access Multiplexer) or in the cloud, and it can guarantee the best resource allocation between adjacent lines according to their real-time traffic needs. As more and more computing resources become available in the operator’s private cloud, VectorBoost can be easily improved and adapted to the needs of service providers.

By boosting spectrum only when customers demand more bandwidth, VectorBoost optimizes spectrum allocation in addition to reducing crosstalk between pairs of a copper bonder. When used in conjunction with Coordinated Dynamic Time Allocation (cDTA), it provides the ideal allocation of bandwidth for each G.hn link in real time.

In regions where optical fiber cannot be built to the customer premises, service providers can leverage G.hn Access technology by using existing cables to provide last mile infrastructure at a reasonable cost. In order to extend fiber networks using P2P and point-to-multipoint (P2MP) infrastructures and topologies based on telephone line and coaxial cable, G.hn deployment options rely on complementary architectures.

Paul Arola, GiGAWire Task Force Chair and TELUS Senior Design Specialist, added, “The GiGAWire Task Force helps accelerate deployments of G.hn access scenarios, enabling service providers to deliver advanced broadband access to SFUs and MDUs that cannot be served. with fiber all the way. We encourage service providers to leverage their coax and twisted pair infrastructure for the latest network segment and capitalize on the VectorBoost open source code for the GiGAWire profile to further enhance their implementations for network function virtualization and deployments requiring crosstalk mitigation.

The VectorBoost compute engine interacts with each of the VectorBoost drivers that run in the GAM as part of the GAM firmware or in a cloud server. To ensure that capacity on all lines matches high traffic demands, the innovation enables the collection of traffic updates from all conductors, analysis of crosstalk characteristics, and calculation of the appropriate distribution of power, spectrum and slots.

In order to minimize the amount of crosstalk that each link generates on neighboring links, the statistical treatment of crosstalk relies on real-time monitoring of the data rates sent and received on each subscriber line, and then on-time adaptation of the power level used in each subscriber line. link to avoid the transmission of fake signals.

The system is designed using MaxLinear’s cloud-based VectorBoost architecture, which scales from single-port installations to hundreds of lines in a topology for high-density MDUs. Bug fixes and new feature enhancements have already been made to the VectorBoost code base using an open source design. The HomeGrid Forum’s GiGAWire working group has reviewed and approved these code changes.

Dr. Len Dauphinee, Vice President and CTO of Broadband Products at MaxLinear adds, “A well-designed G.hn access system should dynamically reallocate network capacity between users to maximize peak speed for users who need capacity at any given time, while minimizing wasted resources for users who do not need capacity due to low traffic requirements. MaxLinear designed the cloud-based VectorBoost architecture to help adapt broadband access installations to high-density MDU topologies requiring crosstalk mitigation. We are delighted to have provided the foundation for the GiGAWire solution. The release of the VectorBoost open source code program supports the acceleration of service provider deployments.

Visit the HomeGrid forum website to join and get the open source code if service providers and system vendors are interested in creating and implementing the highest caliber G.hn access technology for GiGAWire MDU P2mP and SFU mP2P topologies. You can access the GiGAWire GitHub project from the HomeGrid forum here.


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