Search results for "Telephony"

Statistically validated mobile communication networks: the evolution of motifs in European and Chinese data

2014

Big data open up unprecedented opportunities to investigate complex systems including the society. In particular, communication data serve as major sources for computational social sciences but they have to be cleaned and filtered as they may contain spurious information due to recording errors as well as interactions, like commercial and marketing activities, not directly related to the social network. The network constructed from communication data can only be considered as a proxy for the network of social relationships. Here we apply a systematic method, based on multiple hypothesis testing, to statistically validate the links and then construct the corresponding Bonferroni network, gen…

The anatomy and causal structure of a corporate myth: Nokia by the book

2014

In this paper we conceptualise explanations of company-specific commercial performance as corporate myths. To improve our understanding of anatomy and causal structure of corporate myths, we analyse publications that deal with Nokia’s historical transformation from a lossmaking 1980s conglomerate to a focused and successful telecommunications company in the early 1990s. From a corpus of related literature, 89 causal arguments are identified and analysed in terms of the logic of the arguments employed. The analysis shows that (1) most existing analyses offer either a specific or a biased explanation for Nokia’s success; (2) very few explanations are either plausible or logical; (3) it is mos…

Impact of portable device restrictions on IEEE 802.16 performance

2008

IEEE 802.16 is a good alternative for fast wireless connection in the next generation portable information devices (PID). However it was not originally designed for portable devices, but mobility was added later to the specification. This means that the lack of resources on portable devices might have a significant impact on which IEEE 802.16 features should be chosen and how they should be used. Proper usage of ARQ can increase the IEEE 802.16 performance but it can also require much resources from PIDs. In this paper we focus on how ARQ features are affected by limited resources on PID and how much the limitations affect on the performance.

Pattern Identification by Factor Analysis for Regions with Similar Economic Activity Based on Mobile Communication Data

2018

The study analyses the regions’ economic activity in Latvia using Latvia Mobile Telephone (LMT) mobile communication data from July 2015 to January 2017. The call activity and a number of unique phone users by 119 Latvia counties and biggest cities were analysed in two steps: at first method of principal components was used to explain the variance in the data and then exploratory factor analysis was applied. Three factors were identified that describe 87.5% of the total variance of the aggregated daily data. The first factor is related more to the regions with higher economic activity, the second and third factors capture, respectively, lowers call activity during weekdays and are related t…

Is the French mobile phone cartel really a cartel?

2009

International audience; France Telecom (FT), SFR and Bouygues Telecom (BT) have been fined by France's Conseil de la Concurrence (CC) for organizing a mobile phone cartel with stable market shares (one-half, one-third and one-sixth, respectively) and for directly exchanging commercial information. While not contesting the legal decision, it is argued here that the economic reasoning is flawed. (1) As the CC made much of the firms' stable market shares, we have first followed this line of reasoning by considering that the market shares are quotas under uniform costs. Even if there is a general incentive to form a monopolistic cartel, BT was too small for it to be worth its while to join it; it i…

Exploration of Location-Based Services Adoption

2011

The purpose of this chapter is to explore aspects of user perceptions of their use of location-based services. As mobile technologies become more ubiquitous in the general population, it is reasonable to assume that individuals will consume services and software to enhance their aspirations and entertainment desires. This study begins by constructing a location-based service prototype simulation. It then conducts an experiment and analysis based on the Unified Theory of Acceptance and Use of Technology (UTAUT) model. A survey was developed to extract usage information from participants, followed by an analysis of the results using PLS. The analysis shows significant indicators that suggest …

Adoption and use of mobile technologies for learning among smallholder farmer communities in Uganda

2016

Mobile learning (mLeaming) in formal education is getting wide spread but little is known about how to adopt mLeaming in non-formal contexts among smallholder farmer communities, who constitute the majority in most African states. These rely on agriculture, yet their livelihoods are affected by immense changes in seasons. Smallholder farmers' access to mobile phones can act as bridges in supporting learning for secure livelihoods. Using the Unified Theory of Acceptance and Use of Technology (UTAUT), we have conducted multiple case studies of the Community Knowledge Worker project in Uganda. The intention was to analyse mobile learning adoption and use practices among farmers. Based on our f…

Introduction to the Digital and ICT Enabled Services Minitrack

2016

Introduction to Information and Communication Technologies for Development (ICTD) Minitrack: Contributing to Human Development and Social Justice

2015

This minitrack explores opportunities to use Information and communication technologies to promote human development and social justice. In the early days this field began with radio and television as tools to help improve the lives of marginalized communities, but this has now become a global movement of people using computers, the internet, and mobile devices to help human development. Information technologies have become more accessible, more used, and more relevant than ever in the lives of people around the world. A growing body of scholars and researchers work to understand, design, evaluate and critique ICTD interventions, which can bring numerous benefits as well as unanticipated ne…

Mobile Communication and Work Practices in Knowledge-based Organizations

2005

This paper examines the role of mobile communication, mobile tools and work practices in the context of organizations, especially knowledge-based organizations. Today, organizations are highly complex and diverse. Not surprisingly, various solutions to incorporating mobile tools and mobile communication in organizations have been devised. Challenges to technological development and research on mobile communication are presented.