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The cost of building high data rate (≈100 Mb/s per user) wireless internet access networks in rural areas can be significantly reduced by minimizing the number of access points to be deployed, each covering a larger area with a larger user capacity. Given that the available spectrum is limited even in rural areas especially at a lower frequency (VHF(More)
Improving energy efficiency of Internet equipment is becoming an increasingly important research topic, motivated by the need to reduce energy costs (and Carbon footprint) for Internet Service Providers, as well as increase power density to achieve more switching capacity per-rack. While recent research has profiled the power consumption of commercial(More)
Reducing the power consumption of core Internet routers is important for both Internet Service Providers (ISPs) and router vendors. ISPs can reduce their Carbon footprint and operational costs, while router manufacturers can achieve higher switching capacity per rack space. In this work, we examine the impact of packet buffers on the power consumption of(More)
Residential broadband consumption is growing rapidly, increasing the gap between ISP costs and revenues. Meanwhile, proliferation of Internet-enabled devices is congesting access networks, frustrating end-users and content providers. We propose that ISPs virtualize access infrastructure, using open APIs supported through SDN, to enable dynamic and(More)
Ethernet is one of the first computer networking technologies for which a standard has been developed to improve its energy efficiency. The Energy Efficient Ethernet (IEEE 802.3az) standard was approved in 2010 and is expected to enable savings of several Terawatt hours (TWh) per year. As switches that implement the standard become available and are(More)
In this article we discuss the challenges faced when building a national optical access network that is ubiquitous (i.e., reaches all households nationwide) and open access (i.e., allows any provider to offer their services over it). Our work is inspired by a public fiber access network being built in Australia called the National Broadband Network (NBN)(More)
Modern applications are built using two very different technologies: object-oriented programming for business logic; and relational databases for data storage. Object-oriented programming is a key technology for implementing complex systems, providing benefits of reusability, robustness, and maintainability. Relational databases are repositories for(More)
While object-oriented programming and high-performance databases are now mainstream, programmers continue to struggle with persistent storage of objects. Juggling object persistence with requirements for simplicity, flexibility, maintainability, transparency, scalability and five-nines uptime can rattle even the most hardened architect.It has been 10 years(More)
Sustained exponential bandwidth growth of the Internet is threatened by concomitant increase in power requirements of network switches and routers. Recently, researchers have profiled the energy demand of commercial routing platforms and proposed ways to reduce network power consumption. However, the profiles are coarse-grained, and the platforms are(More)