Introduction to Decision, Negotiation, Leadership, Social Communities and Technology Minitrack

N/

An improved multi-agent simulation methodology for modelling and evaluating wireless communication systems resource allocation algorithms

Multi-Agent Systems (MAS) constitute a well known approach in modelling dynamical real world systems. Recently, this technology has been applied to Wireless Communication Systems (WCS), where efficient resource allocation is a primary goal, for modelling the physical entities involved, like Base Stations (BS), service providers and network operators. This paper presents a novel approach in applying MAS methodology to WCS resource allocation by modelling more abstract entities involved in WCS operation, and especially the concurrent network procedures (services). Due to the concurrent nature of a WCS, MAS technology presents a suitable modelling solution. Services such as new call admission, handoff, user movement and call termination are independent to one another and may occur at the same time for many different users in the network. Thus, the required network procedures for supporting the above services act autonomously, interact with the network environment (gather information such as interference conditions), take decisions (e.g. call establishment), etc, and can be modelled as agents. Based on this novel simulation approach, the agent cooperation in terms of negotiation and agreement becomes a critical issue. To this end, two negotiation strategies are presented and evaluated in this research effort and among them the distributed negotiation and communication scheme between network agents is presented to be highly efficient in terms of network performance. The multi-agent concept adapted to the concurrent nature of large scale WCS is, also, discussed in this paper

Mission plan tiros vi

Mission plan for tiros vi satellit

Young People and Digital Intimacies. What is the evidence and what does it mean? Where next?

The digital age makes new forms of connection possible, enabling ‘digital intimacies’ including the many practices of communicating, producing and sharing intimate content (‘sexting’; selfies; making, viewing and circulating sexual content; using hook-up apps; and searching online for advice about sex). Where young people engage in digital intimacies, policymakers have tended to respond with alarm and commissioned research premised on demonstrating negative outcomes. Young people’s take up of technologies is contrasted with previous generations and ideas of ‘healthy’, ‘natural’ and ‘normal’ sexual development which ignores and marginalises diversity of sexuality and sexual expression, and leads to campaigns that seek to supervise and regulate youth sexuality. This in turn results in legislation and censorship with consequences including blocking websites for sexual abuse support and sexual education. The government has suspended introduction of Age Verification for pornographic websites but is pressing ahead with its ‘Online Harms’ White Paper which plans for broader and more comprehensive regulatory frameworks in the interests of protecting children and young people in online spaces. The UK government has positioned itself as a world leader in developing new regulatory approaches to tackle online harms but the evidence base for those approaches is neither robust nor nuanced enough to respond to the increasing mediatisation of everyday life and sexual identity. This briefing advocates for a broader recognition of young people’s investments in digital intimacies, acknowledging what growing up and learning about sex in the digital age means for young people in order to inform future policy and practice. Policies that are informed by robust research and understandings that accommodate the nuanced practices of digital intimacy will provide the support that young people need and deserve as they navigate their media lives, develop awareness of ethical and unethical behaviour, and what is right for them