by Mingming Cai In a dynamic spectrum access system, radios seek robust communications in a communication channel with unknown interfering signals. Cooperative distributed spectrum access radios provide a way to share the spectrum without prior knowledge of other radios’ spectrum occupancy. Competitive distributive spectrum access radios provide a solution to deal with malicious radios using th...

The Internet and social media have entirely changed the traditional paradigm of communication. Instantaneous knowledge sharing is just one of the benefits of these new forms of communication, which are already an integral part of our everyday life. Many young dermatologists start their day by catching up with the latest news on Twitter and use their Facebook pages to share items that catch thei...

To clarify mechanisms involved in the human recognition of body-mediated information, this study examines what kinds of impressions and emotions are perceived from body movements in dance. The study attempted to develop multiple regression models to investigate the effects of physical movement factors on impressions and emotions. The regression analyses show that people perceive emotional infor...

The potential of e-Participation mechanisms has significantly evolved over time. However, with governments, political parties, corporations, and mass-media controlling the communication channels, citizens who deliberate through e-Participation may have to contend with bias, censorship, and even eavesdropping. TownHall is intended to help manage this burden. As a platform-independent, peer-to-pe...

In this paper we present a longitudinal study of an online media space addressing the question of how availability is managed in an interaction-intensive organization. We relied on three different data collection techniques and analysed our data in relation to three different work modes. During this study we participated in an online media space, for approximately six months making spot checks ...

Recent revisions of media regulation and legislation have emphasized diversity and pluralism as key objectives. Both the Federal Communication Commission’s rewriting of broadcasting ownership rules in 2003 and the United Kingdom government’s 2003 Communications Act insist that the public interest is best met through providing a dynamic, market-led approach to communications regulation. This art...