Paul F. Gagen

Hybrid fiber-coax access networks

As the communications industry moves rapidly toward open communication, it is introducing new, higher bandwidth services. Providers of communications services must develop new services while continuing to protect their existing revenue. The HFC-2000™ broadband access system, a cost-effective, full service network solution, was designed to address these competitive needs. This paper describes the technology and performance of hybrid fiber-coax (HFC) systems in general and the powerful paradigms offered by the HFC-2000 system.

Mobile Data explosion and planning of heterogeneous networks

With the continuous increase in Mobile Data traffic, limited availability of wireless spectrum and increased pressure on unit costs, operators have been looking at heterogeneous network architectures as an opportunity to solve the capacity and cost issues of mobile networks. In this paper, we will address the expected growth in traffic, and how the use of a combination of macro, small 3G/4G cells and carrier-grade WiFi access points can provide an optimized architecture to handle the services and resulting traffic. The paper will also address the issues that need to be resolved to fully leverage the potential of heterogeneous networks including interference management, geo-location of hotspots, low cost backhaul for small cells, and deployment cost.

Forecasting techniques for managing mobile data network capacity and growth

This paper proposes a two part methodology and modeling approach, covering techniques for managing mobile data network capacity and growth using Bell Labs forecasting and predictive techniques. The combined methodology overcomes the shortcomings of traditional forecasting techniques by using actual traffic data from the service providers network and the service providers “run-the-business” groups to obtain a detailed user behavior model. Subscriber forecast input from their marketing organization, along with the behavioral trends and Bell Labs forecasting algorithms, methodologies and tools allow for the generation of both baseline/short-term and predictive/longer-term forecasts.

Impact of Bandwidth Demand Growth on HFC Network

Cable Multiple Service Operators (MSOs) are facing increasing bandwidth demands for supporting more High Definition (HD) programs as well as from new and growing applications of High Speed Internet Access (HSIA). Deployments of fiber to the home (FTTH) or fiber to the node with DSL (FTTN/DSL) in some telecom networks are raising the question of whether the MSOs Hybrid Fiber/Coax (HFC) architecture can meet the future demands. This presentation will look at the present and future demands for bandwidth from various services and evaluate the ability of the HFC architecture to meet these demands. We describe the different incremental steps that an MSO can take to increase the available bandwidth and compare the resulting networks capacity to the future bandwidth need. Finally we briefly compare the ability of the FTTH and FTTN/DSL networks to meet the same future demand.