– This paper compares VoATM and VoIP in terms of their suitability for carrying voice traffic over DSL. ATM is currently the preferred protocol due to its built-in QoS mechanisms. Through simulations we show that IP QoS mechanisms can also be used to achieve comparable performance for voice traffic over DSL. Our performance metrics are the ETE delay of voice packets across the DSL access networ...

This paper looks at the concept of invisible learning in the context of the Oxford University Enabling Mothers to Understand Maternity (E-Mum) project. It argues that users take in messages from an online system’s structure, layout and navigation alongside more direct methods of information uptake such as reading or scanning. If this subliminal absorption is harnessed and exploited by developer...

The telecommunications industry is a fragmented market, characterized by a tremendous amount of customer heterogeneity. This paper shows how such customer heterogeneity dramatically affects nonlinear pricing strategies: (i) First, if there are unbalanced calling patterns between different customer types, networks make larger proÞts on the least attractive customers. In addition, the nature of t...

INTRODUCTION................................................................................... 374 I. TELECOMMUNICATIONS SERVICES VERSUS INFORMATION SERVICES ....................................................................................... 380 A. The Supreme Court Endorses Cable Modem Internet Access as an Information Service............................................. 382 B. DSL Migrat...

This paper has two objectives. First, it establishes a model for scoring the access to pharmaceutical services. Second, it develops a model for measuring socioeconomic indicators independent of the time and place of study. These two measures are used for measuring equity in access to pharmaceutical services using concentration curve. We prepared an open-ended questionnaire and distributed it to...

It is envisioned, that WiMAX will provide the last mile internet access to residential users. This will be particularly useful in regions where wire lined infrastructure does not exist or can not be setup, such as rural areas and remote mountainous areas for instance. It is interesting to note, that WiMAX proved its importance during the devastating December 2004 Tsunami in Aceh, Indonesia whic...

Many DSL service providers use PPPoE for residential broadband Internet access. This paper briefly describes the PPPoE protocol, presents strategies for implementing it under Linux and describes in detail a user-space implementation of a PPPoE client.

Broadband internet is widely considered an important determinant of economic growth that has a positive effect on various economic variables. This paper addresses the question whether differences in the availability of broadband internet between German municipalities can explain differences in the unemployment rate. OLS results indicate a negative association between DSL availability and unempl...

The purpose of this document is to provide applicability of the Access Node Control Mechanism to broadband access based on Passive Optical Networks (PONs). The need for an Access Node Control Mechanism between a Network Access Server (NAS) and an Access Node Complex, composed of a combination of Optical Line Termination (OLT) and Optical Network Termination (ONT) elements, is described in a mul...

This paper has two objectives. First, it establishes a model for scoring the access to pharmaceutical services. Second, it develops a model for measuring socioeconomic indicators independent of the time and place of study. These two measures are used for measuring equity in access to pharmaceutical services using concentration curve. We prepared an open-ended questionnaire and distributed it to...