Coverage and Energy Analysis of Mobile Sensor Nodes in Obstructed Noisy Indoor Environment A Voronoi-Approach

When deploying a wireless sensor network (WSN) identifying optimal locations for the nodes is challenging, especially so if the environment is either (i) unknown or (ii) obstacle-rich. We proposes BISON (Bio-Inspired Self- Organizing Network), a variant of the Voronoi algorithm to address this challenge. Among the features of the approach are...

Smart Questions: Context-dependent mobile information exchange for military operations

During military mISSIOns, mobile devices allow information exchange between distributed groups of soldiers. As the context of use changes frequently and more (unstructured) information becomes available during missions, the challenge is to ensure that the right information reaches the right recipients at the right moment. This paper presents the...

Self-organizing networks in 3GPP: Standardization and future trends

Self-Organizing Networks (SON) is a common term for mobile network automation, critical to the cost-efficient deployment, operation and maintenance of mobile networks. This article provides an overview of SON standardization in 3GPP, including both existing and planned functionalities. It also provides an operator perspective on the relevance...

Doing the right task: Context-Aware Notification for Mobile Police Teams

The main argument in this thesis is that mobile technology has to adapt information presentation to the mobile use context and Human Factors (attention, workload and individual characteristics). This will provide better support for work in these domains than non-adaptive systems. We expect such context-aware mobile support (CAMS) systems to...

Balancing benefits and costs of autmated task allocation in mobile surveillance

Motivation - Automated task allocation systems are prone to errors (e.g. incorrect advice) due to context events. Empirical assessment is needed of how the costs of incorrect task allocation advice relate to the benefits. Research approach - Claims regarding benefits and costs are tested in a team surveillance task in a synthetic task...

Network-aware support for mobile distributed teams

An experiment evaluated network-aware support to increase understanding of the factors that are important for successful teamwork in mobile geographically dispersed teams of first responders. Participants performed a simulated search and rescue team task and were equipped with a digitized map and realtime situation updates on the location of...

Context-aware team task allocation to support mobile police surveillance

To optimally distribute tasks within police teams during mobile surveillance, a context-aware task allocation system is designed and evaluated with end-users. This system selects and notifies appropriate team members of current incidents, based on context information (officer availability, officer proximity to the incident and incident priority)...

RF impairments in high-rate wireless systems - understanding the impact of TX/RX-asymmetry

Dealing with radio frequency (RF) front-end impairments will be one of the major design challenges for next-generation wireless communication systems due to conflicting requirements, such as high data rate, low cost and low power consumption. The use of digital compensation of the imperfections appears a very promising method to meet...

Field evaluation of a mobile location-based notification system for police officers

To increase police officer awareness of incident locations, the Dutch police developed and implemented a location-based notification system (LBNS). This mobile service notifies police officers proactively to warrants, agreements and police focal points in their current vicinity. To assess the accuracy, efficiency, effectiveness and user...

Designing automated handheld navigation support

Map usage on handheld devices suffers from limited screen size and the minimal attention that users can dedicate to them in mobile situations. This work examines effects of automating navigation features like zooming and panning as well as other features such as rotation, path finding and artifact representation on the mobile navigation...

Proxying UPnP service discovery and access to a non-IP Bluetooth network on a mobile phone

The current service- and device discovery protocols are not platform- and network independent. Therefore, proxy servers will be needed to extend the range of IP-based discovery protocols to non-IP domains. We developed an architecture of a proxy that enables Universal Plug and Play (UPnP) devices and services to be discovered and accessed on the...

Designing personal attentive user interfaces in the mobile public safety domain

In the mobile computing environment, there is a need to adapt the information and service provision to the momentary attentive state of the user, operational requirements and usage context. This paper proposes to design personal attentive user interfaces (PAUI) for which the content and style of information presentation is based on models of...

Mobile DRM - Usability out the door?

One current trend is that content such as e-books, music, videos and now also games and applications are increasingly being distributed across the Internet, and more and more of it is protected by a Digital Rights Management system. Another trend is that this content is consumed using an increasing number and variety of devices, some of which...

Wireless sensor network for mobile surveillance systems; 2005BU1-TRSP

Guarding safety and security within industrial, commercial and military areas is an important issue nowadays. A specific challenge lies in the design of portable surveillance systems that can be rapidly deployed, installed and easily operated. Conventional surveillance systems typically employ standalone sensors that transmit their data to a...