Thomas Michael Bohnert

Thomas Michael Bohnert
Zurich University of Applied Sciences | ZHAW · Institute of Applied Information Technology (InIT)

PhD, Professor

About

116
Publications
27,584
Reads
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788
Citations
Additional affiliations
January 2013 - July 2016
Zurich University of Applied Sciences
Position
  • Head of Department
January 2012 - January 2016
Zurich University of Applied Sciences
Position
  • Head of Research Group Service Engineering, Prof-Dr.
August 2008 - January 2012
SAP Research
Position
  • Managing Director

Publications

Publications (116)
Chapter
As systems get more complex testing has also increased not only in complexity but in the total IT cost, which is estimated to increase even more by 2020. Testing large complex distributed applications is hard, time consuming and lacks tooling. Given that the digitisation of business has proved to be a key aspect for improving the productivity of de...
Chapter
Cloud computing can greatly enhance robotic applications, not only by complementing robotic resources (e.g., CPU/GPU, memory, storage), but also by providing global-scale highly available services, distributed application management solutions, proven development and deployment practices. However, several challenges have to be addressed in order to...
Conference Paper
Full-text available
Distributed cloud storage solutions are currently gaining high momentum in industry and academia. The enterprise data volume growth and the recent tendency to move as much as possible data to the cloud is strongly stimulating the storage market growth. In this context, and as a main requirement for cloud native applications, it is of utmost importa...
Conference Paper
Full-text available
This paper states the research done in building a Wildfire Propagation Simulation tool able to present graphically, how the fire will be propagated in case of a wildfire. The core of this tool was developed using Cellular Automata (CA) relayed on mathematical foundations for modeling the propagation and the transition rules of the CA. Also, the mat...
Article
Full-text available
Over the last couple of decades, the demand for storage in the Cloud has grown exponentially. Distributed Cloud storage and object storage for the increasing share of unstructured data, are in high focus in both academic and industrial research activities. At the same time, efficient storage and the corresponding costs are often contrasting paramet...
Preprint
Full-text available
Edge environments offer a number of advantages for software developers including the ability to create services which can offer lower latency, better privacy, and reduced operational costs than traditional cloud hosted services. However large technical challenges exist, which prevent developers from utilising the Edge; complexities related to the h...
Article
Several relevant research and innovation activities have recently investigated the technical and economic advantages of cloud computing for the provisioning of telco service infrastructures, in particular towards all-IP next generation 5G networks. In fact, the evolution of telco service infrastructures traditionally requires a significant upfront...
Conference Paper
The setup of distributed computing clusters and the installation of data analysis frameworks can be cumbersome and requires a great deal of knowledge in a plenitude of fields. We have developed DISCO, a service which is alleviating the data scientist from these hurdles. This paper shows up the competitiveness of DISCO with an existing solution.
Conference Paper
Robots are moving out of factories, service robotics is bringing them to our homes, work environments, cities, and outdoors. While the Robot Operating System (ROS) is promising to open the world of robotics to developers, a proper platform and ecosystem supporting robotic applications development is still missing. This work presents an example of c...
Presentation
Full-text available
ICIN 2017 - Keynote - Cloud Robotics
Article
Full-text available
The fast growing development of Network Function Virtualization (NFV) trends and the remarkable progress of Software Defined Networking (SDN), have yield a synergy between both, towards the provision of convergent networking solutions. Since the traditional networking principles were not designed according to NVF specification, a work has surged de...
Article
Running applications in the cloud efficiently requires much more than deploying software in virtual machines. Cloud applications have to be continuously managed: (1) to adjust their resources to the incoming load and (2) to face transient failures replicating and restarting components to provide resiliency on unreliable infrastructure. Continuous m...
Article
Cloud computing enables the on-demand delivery of resources for a multitude of services and gives the opportunity for small agile companies to compete with large industries. In the telco world, cloud computing is currently mostly used by Mobile Network Operators (MNO) for hosting non-critical support services and selling cloud services such as appl...
Article
Full-text available
Current trends in broadband mobile networks are addressed towards the placement of different capabilities at the edge of the mobile network in a centralised way. On one hand, the split of the eNB between baseband processing units and remote radio headers makes it possible to process some of the protocols in centralised premises, likely with virtual...
Conference Paper
With the introduction of the ETSI Network Function Virtualization (NFV) standardization, network operators started migrating their network infrastructures from dedicated hardware boxes to more common cloudified datacenters. The gain from the point of view of reduction of the infrastructure costs is almost clear, while many challenges appear especia...
Chapter
This chapter begins with the basis of standards, including when and where they are appropriate and why they are needed. After presenting a summary of the range and variety of standards and their issuing organizations to provide the reader with the necessary background, the fundamental features unique to cloud-computing standards are covered. Cloud...
Presentation
Full-text available
CEBIT 2014: Talk at Swiss Arena ”Cloud Computing, today and tomorrow”
Presentation
Full-text available
Keynote as the IAESTE Annual Conference, Prague 2016
Presentation
Full-text available
Keynote as the IAESTE Annual Conference, Prague 2016. Author TMB ZHAW
Presentation
Full-text available
Keynote as the IAESTE Annual Conference, Prague 2016
Presentation
Full-text available
Keynote as the IAESTE Annual Conference, Prague 2016
Presentation
Full-text available
Keynote as the IAESTE Annual Conference, Prague 2016. Author TMB
Research
Full-text available
The main benefit of cloud computing lies in the elasticity of virtual resources that are provided to end users. Cloud users do not have to pay fixed hardware costs and are charged for consumption of computing resources only. While this might be an improvement for software developers who use the cloud, application users and consumers might rather be...
Article
In this paper we consider how energy efficiency aspects can be added to Openstack. With the objective of devising an energy efficient resource manager for Openstack, we first analyze resource and energy utilization on our cloud resources. We observe that there is a large fixed cost associated with server usage patterns and powering down servers is...
Article
With the ongoing advancements in Cloud Computing, new technologies and standards are being developed, ever increasing the complexity of this environment along with the associated risks, thus making it difficult for companies to take advantage of the benefits Cloud Computing brings without being exposed to them. Due to this increased complexity, the...
Conference Paper
The existence of the Domain Name Service (DNS) is a vital service for the Internet, being much more than a simple translation mech- anism, allowing more high-profiled functionalities such as load-balancing or enhanced content distribution. With the current trend towards Cloud Computing, employing DNS as a Service (DNSaaS) in this paradigm contribut...
Conference Paper
Content Distribution Networks are mandatory components of modern web architectures, with plenty of vendors offering their services. Despite its maturity, new paradigms and architecture models are still being developed in this area. Cloud Computing, on the other hand, is a more recent concept which has expanded extremely quickly, with new services b...
Conference Paper
Full-text available
Rating, Charging, Billing (RCB) is the fundamental activity that enables a business to generate revenue stream depending on the resource consumption by their consumers. Traditionally, telecom operators have used custom designed, vertically integrated solution for RCB which often results in a complex system that is difficult to adapt to new service...
Conference Paper
Full-text available
In cloud environments High Availability characteristics are established by the usage of failover software (like e. g. HAProxy, Keepalive or Pacemaker). Though these tools enable automatic recovery of cloud services from outages, the recovery can still be very slow if it is not configured adequately. In this paper we developed a " Recovery Time Test...
Poster
Full-text available
Monitoring physical devices an OpenStack deployment and contribution to the Ceilometer project.
Conference Paper
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Long Term Evolution (LTE) represents the fourth generation (4G) technology which is capable of providing high data rates as well as support of high speed mobility. The EU FP7 Mobile Cloud Networking (MCN) project integrates the use of cloud computing concepts in LTE mobile networks in order to increase LTE's performance. In this way a shared distri...
Conference Paper
Full-text available
The maturity reached by virtualisation technology enabled great innovation for efficient applications and services development and delivery, independent of the underlying hardware equipment, especially with the large deployment of off-the-shelf hardware based cloud infrastructures. In order to take advantage of this technology, the existing network...
Conference Paper
Virtualisation of cellular networks can be seen as a way to significantly reduce the complexity of processes, required nowadays to provide reliable cellular networks. The Future Communication Architecture for Mobile Cloud Services: Mobile Cloud Networking (MCN) is a EU FP7 Large-scale Integrating Project (IP) funded by the European Commission that...
Conference Paper
In this paper we present an idea of a propriety Software Defined residential Network (SDrN) and we show as a use case, a multicast streaming service that can be hosted on such networks. To verify the feasibility of the service in the context of quality of service, we offer to the providers of online streaming services (in some cases the ISPs themse...
Article
Full-text available
In this position paper we describe the current status and plans for a Swiss National Research Infrastructure. Swiss academic and research institutions are very autonomous. While being loosely coupled, they do not rely on any centralized management entities. Therefore, a coordinated national research infrastructure can only be established by federat...
Chapter
In this position paper, we describe the current status and plans for a Swiss National Research Infrastructure. Swiss academic and research institutions are very autonomous. While being loosely coupled, they do not rely on any centralized management entities. A coordinated national research infrastructure can only be established by federating the lo...
Data
Full-text available
thomas.bohnert@zhaw.ch With contributions by the entire MCN consortium FUSECO Forum, Berlin, Nov 2013,
Conference Paper
Full-text available
This paper describes a framework on how to test High Availability capabilities of cloud architectures, particularly OpenStack. The quot;Dependability Modeling Frameworkquot; which consists of a modelling of the system parts, user interactions and dependencies between them will form the basis for this test. The test procedure consists of simulating...
Conference Paper
In this position paper, we describe the current status and plans for a Swiss National Research Infrastructure. Swiss academic and research institutions are very autonomous. While being loosely coupled, they do not rely on any centralized management entities. A coordinated national research infrastructure can only be established by federating the va...
Article
Full-text available
With advances in healthcare technologies, digital electronics, smart sensors, and wireless communications, a variety of e-Health applications have come to realization that usher in solutions with new capabilities, enhance and improve current approaches for delivering effective and efficient healthcare services. In this domain, wireless sensors have...
Patent
Full-text available
Embodiments of the present invention include systems and methods for a computer-implemented, in-vehicle application platform (VAP) for conducting vehicle-to-business (V2B) communication. A V2B vehicle application layer resides within the vehicle. The VAP comprises a communication layer facilitating reliable message exchange between this vehicle app...
Conference Paper
Full-text available
The Future Communication Architecture for Mobile Cloud Services: Mobile Cloud Networking (MCN) is a EU FP7 Large-scale Integrating Project (IP) funded by the European Commission. MCN project was launched in November 2012 for the period of 36 month. In total top-tier 19 partners from industry and academia commit to jointly establish the vision of Mo...
Chapter
As the relentless march towards an Internet of Services (IoS) continues, it is of utmost importance for the telecoms industry to understand what the IoS is and upon what foundations and methodologies the IoS is based and built on. Further, how the telecom industry can leverage IoS research and push IoS capabilities on and beyond through innovation...
Article
Full-text available
This article proposes a new enhanced fractional frequency reuse (FFR) scheme to improve the system performance in multi-cell orthogonal frequency division multiple access system, which tackles the problems of frequency distribution and inter-cell interference (ICI) by jointly FFR and ICI coordination. The proposed scheme dynamically assigns subcarr...
Article
Full-text available
This article proposes an integrated framework for adaptive QoS provision in IEEE 802.16e broadband wireless access networks based on cross-layer design. On one hand, an efficient admission control (AC) algorithm is proposed along with a semi-reservation scheme to guarantee the connection-level QoS. First, to guarantee the service continuity for han...
Conference Paper
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Article
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The vision of the GEYSERS project is to qualify optical infrastructure providers and network operators with a new architecture and by thus enabling them to enhance their traditional business operations towards true end-to-end Cloud Computing product offerings. Optical network infrastructure providers will compose logical infrastructures and rent th...
Conference Paper
GEYSERS aims at defining an end-to-end network architecture that offers a novel planning, provisioning and operational framework for optical network and IT infrastructure providers and operators. In this framework, physical infrastructure resources (network and IT) are dynamically partitioned to virtual resources and then composed into a Virtual In...
Article
Full-text available
Cognitive radio arises as a hot research issue in wireless communications recently, attributed to its capability of enhancing spectral efficiency and catering for the growing demand for bandwidth. As a good embodiment of cognitive radio’s unique feature, i.e. making use of every bit spectral resource, spectrum sensing plays a vital role in the impl...
Article
Quality of Service is one of the major research topics in computer communications, not at last reflected by the immense number of work published by today. In fact, continuous innovation is shaping this versatile subject in many aspects and it's nearly impossible to keep track for an individual. For this reason, this paper provides a tutorial-style...
Chapter
Full-text available
In this chapter we presented an enhancement for the NS2-NIST/WiMAX model in order to efficiently support QoS. Specifically, a packet classification mechanism and the associated scheduler, based on priority RR (PRR), have been designed, implemented and tested. Through the performance evaluation measurements with different topologies, point-topoint (...
Chapter
Full-text available
Quality of Experience (QoE) relates to how users perceive the quality of an application. To capture such a subjective measure, either by subjective tests or via objective tools, is an art on its own. Given the importance of measuring users’ satisfaction to service providers, research on QoE took flight in recent years. In this paper we present an o...
Conference Paper
GEYSERS´ vision is to provide optical infrastructure providers and network operators with a new architecture, to enhance their traditional business models. Optical network infrastructure providers will compose logical infrastructures and lease them out to network operators; network operators will run cost-efficient, dynamic and mission-specific net...
Book
Beginning with the first event in 2002, the International Conference on Wired/ Wireless Internet Communications (WWIC) has continuously been established as a highly selective conference focusing on integration and co-existence of rapidly dev- oping wireless network technologies and their applications related to the Internet. To do so WWIC provides...