|
ROLE
 Author only
· Editor only
· Other only
· All roles
AUTHOR'S COLLEAGUES
See all colleagues of this author
SUBJECT AREAS
See all subject areas
KEYWORDS
See all author supplied keywords
AUTHOR PROFILE PAGES
Project background
 Author-Izer Service
BOOKMARK & SHARE
|
|
270 results found
Export Results:
bibtex
| endnote
| acmref
| csv
Result page:
1
2
3
4
5
6
7
8
9
10
>>
1
MoVeNet: Mobility Management for Vehicular Networking
Tobias Rueckelt,
Halis Altug,
Daniel Burgstahler,
Doreen Böhnstedt,
Ralf Steinmetz
November 2016
MobiWac '16: Proceedings of the 14th ACM International Symposium on Mobility Management and Wireless Access
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 6, Downloads (12 Months): 44, Downloads (Overall): 44
Full text available:
 PDF
Vehicle Internet access benefits from using heterogeneous multi-provider networks. However, such access suffers significantly from insufficient handover processes. Due to high vehicle speeds, handover happens frequently and is substantially impaired by high handover delays. To solve correlated issues, we propose MoVeNet, a client-controlled, distributed mobility management approach with three substantial ...
Keywords:
multi-homing, multi-operator networks, client-controlled, distributed mobility management, handover
2
Impact of Time in Network Selection for Mobile Nodes
Tobias Rueckelt,
Daniel Burgstahler,
Florian Jomrich,
Doreen Böhnstedt,
Ralf Steinmetz
November 2016
MSWiM '16: Proceedings of the 19th ACM International Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems
Publisher: ACM
Bibliometrics:
Citation Count: 1
Downloads (6 Weeks): 5, Downloads (12 Months): 48, Downloads (Overall): 48
Full text available:
PDF
Today, mobile nodes use multiple Internet access networks inefficiently. State-of-the-art network selection strategies distribute data traffic to available networks, but ignore an important second dimension: time. Time selection offers the opportunity to plan usage of future-available networks for delay-tolerant data traffic. We hypothesize, that concurrent selection of network and time ...
Keywords:
rating model, mobile node, time selection, network selection
3
Activity Recognition in Multi-User Environments Using Techniques of Multi-label Classification
November 2016
IoT'16: Proceedings of the 6th International Conference on the Internet of Things
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 10, Downloads (12 Months): 52, Downloads (Overall): 52
Full text available:
PDF
Activity recognition represents the cornerstone in realizing intelligent services such as energy conservation and ambient assisted living in smart environments. The problem statement of most activity recognition research assumes that only mutually exclusive activities occur in smart environments. The majority of research projects in this field focus on single-user environments ...
Keywords:
Activity Recognition, Multi-Label Classification, Smart Environments
4
Special issue: When social media meets physical world
July 2016
Multimedia Systems: Volume 22 Issue 4, July 2016
Publisher: Springer-Verlag New York, Inc.
5
A Framework for Publish/Subscribe Protocol Transitions in Mobile Crowds
Björn Richerzhagen,
Alexander Wagener,
Nils Richerzhagen,
Rhaban Hark,
Ralf Steinmetz
June 2016
Proceedings of the 10th IFIP WG 6.6 International Conference on Management and Security in the Age of Hyperconnectivity - Volume 9701
Publisher: Springer-Verlag New York, Inc.
The increasing number of sensor-equipped mobile devices enables new applications for communication within crowds of people. Ranging from monitoring services that provide insights into the crowd's behavior to fully fledged messaging applications for end users, all such applications require communication protocols that are tailored to the characteristics of a mobile ...
6
Editorials from the Past and Current Editors-in-Chief
Ralf Steinmetz
June 2016
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMM): Volume 12 Issue 3, June 2016
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 3, Downloads (12 Months): 46, Downloads (Overall): 46
Full text available:
PDF
7
Publish-subscribe-based control mechanism for scheduling integration in Mobile IPv6
Tobias Rueckelt,
Florian Jomrich,
Daniel Burgstahler,
Doreen Bohnstedt,
Ralf Steinmetz
October 2015
LCN '15: Proceedings of the 2015 IEEE 40th Conference on Local Computer Networks (LCN 2015)
Publisher: IEEE Computer Society
Currently discussed handover protocols do not provide the means to allow holistic flow handover scheduling. However, flow scheduling leads to a performance boost resulting from efficient parallel network use and a match of network characteristics to application requirements. Mobile IPv6 with flow binding extension and route optimization fulfills most requirements. ...
8
A step towards a protocol-independent measurement framework for dynamic networks
Nils Richerzhagen,
Tao Li,
Dominik Stingl,
Bjorn Richerzhagen,
Ralf Steinmetz,
Silvia Santini
October 2015
LCN '15: Proceedings of the 2015 IEEE 40th Conference on Local Computer Networks (LCN 2015)
Publisher: IEEE Computer Society
Existing measurement frameworks typically assume that the communication protocols and mechanisms running on the devices do not change during network operation. However, recent research efforts show that by enabling devices to switch between protocols and mechanisms at runtime the overall network performance can be improved. In this paper, a novel ...
9
Game Mastering in Collaborative Serious Games: A Novel Approach for Instructor Support in Multiplayer Serious Games
Stefan Göbel,
Ralf Steinmetz,
Viktor Wendel,
Stefan Krepp,
Michael Oliver Gutjahr
October 2015
International Journal of Game-Based Learning: Volume 5 Issue 4, October 2015
Publisher: IGI Global
In collaborative learning scenarios, the role of the instructor is vital. This aspect directly carries over to the concept of collaborative multiplayer Serious Games, where a group of players is learning together using a Serious Game. In this paper, the authors propose a novel approach for integration and support of ...
Keywords:
Collaborative Learning, Game Mastering, Serious Games, Adaptation
10
Simonstrator: simulation and prototyping platform for distributed mobile applications
August 2015
SIMUTools '15: Proceedings of the 8th International Conference on Simulation Tools and Techniques
Publisher: ICST (Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering)
Bibliometrics:
Citation Count: 4
Downloads (6 Weeks): 25, Downloads (12 Months): 62, Downloads (Overall): 62
Full text available:
PDF
The increasing market penetration of mobile devices, such as smartphones and tablets, poses additional challenges on the design of distributed systems. Due to the heterogeneous environment consisting of both, mobile and fixed devices, a multitude of effects on different scales need to be considered. Microscopic effects, such as an individual ...
Keywords:
prototype, android, mobile devices, simulation
11
Electricity-Metering in a Connected World: Virtual Sensors for Estimating the Electricity Consumption of IoT Appliances
August 2015
FICLOUD '15: Proceedings of the 2015 3rd International Conference on Future Internet of Things and Cloud
Publisher: IEEE Computer Society
Due to rising electricity prices, there is an increasing incentive to save energy. Therefore, more and more large organizations intend to reduce their energy consumption. Often, their plans cannot be realized due to missing insights into the causes energy consumption. Centralized energy meters provide no information at which appliances the ...
Keywords:
Virtual Sensors, Internet of Things, Energy Model
12
Framework for personalized and adaptive game-based training programs in health sport
July 2015
Multimedia Tools and Applications: Volume 74 Issue 14, July 2015
Publisher: Kluwer Academic Publishers
This paper describes an interdisciplinary approach towards a framework for personalized, game-based training programs for elderly and handicapped people. Adaptation and personalization are proposed as a way to increase the physiological training effects of game-based training programs (exergames). Hereby, the diversity of users and a broad range of physiological handicaps ...
Keywords:
Exergames, Serious Games, Training, Health, Adaptation, Personalization, Sensors
13
Towards Establishing Security-Aware Cloud Markets
Olga Wenge,
Dieter Schuller,
Ralf Steinmetz
December 2014
CLOUDCOM '14: Proceedings of the 2014 IEEE 6th International Conference on Cloud Computing Technology and Science
Publisher: IEEE Computer Society
Today's cloud environments are very heterogeneous. This cloud heterogeneity, as the consequence of lacking cloud standards, builds technical and security barriers between cloud providers and blocks them from intended cloud collaborations within cloud marketplaces. A cloud broker, who acts on behalf of cloud providers, matches compatible collaborative partners according to ...
Keywords:
cloud computing security, cloud collaborations, cloud brokerage, information security governance, risk assessment, cloud certification, security labeling
14
Learning Analytics and Serious Games: Trends and Considerations
November 2014
SeriousGames '14: Proceedings of the 2014 ACM International Workshop on Serious Games
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 24, Downloads (12 Months): 111, Downloads (Overall): 477
Full text available:
PDF
This paper reviews the current status of Learning Analytics with special focus on their application in Serious Games. After presenting the advantages of incorporating Learning Analytics into game-based learning applications, different aspects regarding the integration process including modeling, tracing, aggregation, visualisation, analysis and employment of gameplay data are discussed. Associated ...
Keywords:
game-based learning, serious games, learning analytics
15
What Makes Games Challenging?: Considerations on How to Determine the "Challenge" Posed by an Exergame for Balance Training
Sandro Hardy,
Angelika Kern,
Tim Dutz,
Christoph Weber,
Stefan Göbel,
Ralf Steinmetz
November 2014
SeriousGames '14: Proceedings of the 2014 ACM International Workshop on Serious Games
Publisher: ACM
Bibliometrics:
Citation Count: 3
Downloads (6 Weeks): 10, Downloads (12 Months): 30, Downloads (Overall): 127
Full text available:
PDF
Exergames are expected to induce desired health-related effects by incorporating a players' bodily movements into their gameplay. The effectiveness of these games is determined by the compliance to the training goals and by the frequency and the duration of playing. The latter is influenced by the player's motivation and increasing ...
Keywords:
sensors, adaptation, self determination theory, difficulty, exergames, goal setting, health, motivation, personalization, serious games, training
16
The Group Formation Problem: An Algorithmic Approach to Learning Group Formation
September 2014
EC-TEL 2014: Proceedings of the 9th European Conference on Open Learning and Teaching in Educational Communities - Volume 8719
Publisher: Springer-Verlag New York, Inc.
Fostering knowledge exchange among peers is important for learners' motivation, achievement of learning goals as well as improvement of problem solving competency. Still, the positive effects of such an exchange depend strongly on the suitability of the selected peers in a group. A comparison of existing algorithmic solutions applicable for ...
Keywords:
CSCL, Matching, Algorithmic Optimization, Learning Group Formation
17
On Developing Fair and Orderly Cloud Markets: QoS-and Security-Aware Optimization of Cloud Collaboration
July 2014
International Journal of Organizational and Collective Intelligence: Volume 4 Issue 3, July 2014
Publisher: IGI Global
While cloud markets promise virtually unlimited resource supplies, standardized commodities and proper services, some providers may not be able to offer effectual physical capacity to serve large customers. A solution is cloud collaborations, in which multiple providers unite forces in order to conjointly offer capacities in the cloud markets. Supposably, ...
Keywords:
Cloud Computing Security, Cloud Brokerage, Information Security Governance, Cloud Collaborations, Cloud Markets, Quality of Service
18
Towards Heuristic Optimization of Complex Service-Based Workflows for Stochastic QoS Attributes
Dieter Schuller,
Melanie Siebenhaar,
Ronny Hans,
Olga Wenge,
Ralf Steinmetz,
Stefan Schulte
June 2014
ICWS '14: Proceedings of the 2014 IEEE International Conference on Web Services
Publisher: IEEE Computer Society
The problem of selecting services from a set of functionally appropriate ones under Quality of Service constraints - the Service Selection Problem - is well-recognized in the literature based on deterministic parameters. However, Quality of Service may rather follow a stochastic distribution and, thus, may change at runtime. In order ...
Keywords:
Service Selection, Stochastic Quality of Service, Optimization, Simulation
19
Reducing the electricity consumption of largeoutdoor LED advertising screens
June 2014
e-Energy '14: Proceedings of the 5th international conference on Future energy systems
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 5, Downloads (12 Months): 12, Downloads (Overall): 63
Full text available:
PDF
Outdoor LED advertising screens have a high power consumption. Those installations can easily reach a power density of 1kW per square meter. This causes not only high electricity costs for the operator but also pollutes the environment with stray light. As the high power consumption is mainly caused by incorrect ...
Keywords:
luminance control, simulation, LED wall, energy saving
20
Cost-efficient Capacitation of Cloud Data Centers for QoS-aware Multimedia Service Provision
April 2014
CLOSER 2014: Proceedings of the 4th International Conference on Cloud Computing and Services Science
Publisher: SCITEPRESS - Science and Technology Publications, Lda
Cloud infrastructure is increasingly used for the provision of sophisticated multimedia services, such as cloud gaming or Desktop as a Service, with stringent Quality of Service demands. Serving these service demands results in the need to cost-efficiently select and capacitate data centers. In the work at hand, we introduce the ...
Keywords:
cloud computing, multimedia, quality of service, service, capacitation, data center
|
|
