---
_id: '13124'
author:
- first_name: Sevil
  full_name: Dräxler, Sevil
  id: '31764'
  last_name: Dräxler
citation:
  ama: Dräxler S. <i>Scaling, Placement, and Routing for Pliable Virtualized Composed
    Services</i>. Universität Paderborn; 2019.
  apa: Dräxler, S. (2019). <i>Scaling, placement, and routing for pliable virtualized
    composed services</i>. Universität Paderborn.
  bibtex: '@book{Dräxler_2019, title={Scaling, placement, and routing for pliable
    virtualized composed services}, publisher={Universität Paderborn}, author={Dräxler,
    Sevil}, year={2019} }'
  chicago: Dräxler, Sevil. <i>Scaling, Placement, and Routing for Pliable Virtualized
    Composed Services</i>. Universität Paderborn, 2019.
  ieee: S. Dräxler, <i>Scaling, placement, and routing for pliable virtualized composed
    services</i>. Universität Paderborn, 2019.
  mla: Dräxler, Sevil. <i>Scaling, Placement, and Routing for Pliable Virtualized
    Composed Services</i>. Universität Paderborn, 2019.
  short: S. Dräxler, Scaling, Placement, and Routing for Pliable Virtualized Composed
    Services, Universität Paderborn, 2019.
date_created: 2019-09-03T12:16:32Z
date_updated: 2022-01-06T06:51:28Z
department:
- _id: '75'
language:
- iso: eng
project:
- _id: '1'
  name: SFB 901
- _id: '4'
  name: SFB 901 - Project Area C
- _id: '16'
  name: SFB 901 - Subproject C4
publisher: Universität Paderborn
status: public
supervisor:
- first_name: Holger
  full_name: Karl, Holger
  id: '126'
  last_name: Karl
title: Scaling, placement, and routing for pliable virtualized composed services
type: dissertation
user_id: '477'
year: '2019'
...
---
_id: '1208'
author:
- first_name: Arne
  full_name: Schwabe, Arne
  last_name: Schwabe
citation:
  ama: Schwabe A. <i>Data-Centre Traffic Optimisation Using Software-Defined Networks</i>.
    Universität Paderborn; 2018. doi:<a href="https://doi.org/10.17619/UNIPB/1-287">10.17619/UNIPB/1-287</a>
  apa: Schwabe, A. (2018). <i>Data-Centre Traffic Optimisation using Software-Defined
    Networks</i>. Universität Paderborn. <a href="https://doi.org/10.17619/UNIPB/1-287">https://doi.org/10.17619/UNIPB/1-287</a>
  bibtex: '@book{Schwabe_2018, title={Data-Centre Traffic Optimisation using Software-Defined
    Networks}, DOI={<a href="https://doi.org/10.17619/UNIPB/1-287">10.17619/UNIPB/1-287</a>},
    publisher={Universität Paderborn}, author={Schwabe, Arne}, year={2018} }'
  chicago: Schwabe, Arne. <i>Data-Centre Traffic Optimisation Using Software-Defined
    Networks</i>. Universität Paderborn, 2018. <a href="https://doi.org/10.17619/UNIPB/1-287">https://doi.org/10.17619/UNIPB/1-287</a>.
  ieee: A. Schwabe, <i>Data-Centre Traffic Optimisation using Software-Defined Networks</i>.
    Universität Paderborn, 2018.
  mla: Schwabe, Arne. <i>Data-Centre Traffic Optimisation Using Software-Defined Networks</i>.
    Universität Paderborn, 2018, doi:<a href="https://doi.org/10.17619/UNIPB/1-287">10.17619/UNIPB/1-287</a>.
  short: A. Schwabe, Data-Centre Traffic Optimisation Using Software-Defined Networks,
    Universität Paderborn, 2018.
date_created: 2018-03-13T10:22:51Z
date_updated: 2022-01-06T06:51:17Z
department:
- _id: '75'
doi: 10.17619/UNIPB/1-287
language:
- iso: eng
project:
- _id: '1'
  name: SFB 901
- _id: '6'
  name: SFB 901 - Subproject A2
- _id: '4'
  name: SFB 901 - Project Area C
- _id: '16'
  name: SFB 901 - Subproject C4
- _id: '2'
  name: SFB 901 - Project Area A
publisher: Universität Paderborn
status: public
supervisor:
- first_name: Holger
  full_name: Karl, Holger
  id: '126'
  last_name: Karl
title: Data-Centre Traffic Optimisation using Software-Defined Networks
type: dissertation
user_id: '477'
year: '2018'
...
---
_id: '3291'
abstract:
- lang: eng
  text: The microservice architecture uses independently running microservices as
    build- ing blocks for applications. These microservices are clearly bounded for
    each other and expose their functionality through, for instance, RESTful application
    inter- faces. Particularly the clear boundaries between microservices enable the
    reuse of microservice throughout different projects. Because of the increasing
    use of microservices, the composition of multiple microservices in service composition
    becomes a more important task. A challenging area in developing service compo-
    sitions is that it involves two distinct layers with few junctions. On the one
    hand, describes a service composition a business process, which involves multiple
    com- ponents. On the other hand, involves the implementation of a service composition
    topics like service discovery and message exchange protocols since the microser-
    vices involved in a service composition are located within a network environment.
    In this Bachelor’s Thesis, I describe a descriptions language to abstractly describe
    the business logic of a service composition. Furthermore, I describe a genera-
    tion process, which compiles this abstract description to a working microservice
    realizing the specified service composition. In addition to that, I provide an
    im- plementation of the generation process, as a proof of concept, and test it
    within a Kubernetes-based cluster environment.
author:
- first_name: Andreas
  full_name: Schürmann, Andreas
  last_name: Schürmann
citation:
  ama: Schürmann A. <i>Microservice-Based Execution Environment for Service Compositions</i>.
    Universität Paderborn; 2017.
  apa: Schürmann, A. (2017). <i>Microservice-based Execution Environment for Service
    Compositions</i>. Universität Paderborn.
  bibtex: '@book{Schürmann_2017, title={Microservice-based Execution Environment for
    Service Compositions}, publisher={Universität Paderborn}, author={Schürmann, Andreas},
    year={2017} }'
  chicago: Schürmann, Andreas. <i>Microservice-Based Execution Environment for Service
    Compositions</i>. Universität Paderborn, 2017.
  ieee: A. Schürmann, <i>Microservice-based Execution Environment for Service Compositions</i>.
    Universität Paderborn, 2017.
  mla: Schürmann, Andreas. <i>Microservice-Based Execution Environment for Service
    Compositions</i>. Universität Paderborn, 2017.
  short: A. Schürmann, Microservice-Based Execution Environment for Service Compositions,
    Universität Paderborn, 2017.
date_created: 2018-06-21T11:09:30Z
date_updated: 2022-01-06T06:59:09Z
department:
- _id: '75'
language:
- iso: eng
project:
- _id: '16'
  name: SFB 901 - Subproject C4
- _id: '1'
  name: SFB 901
- _id: '4'
  name: SFB 901 - Project Area C
publisher: Universität Paderborn
status: public
supervisor:
- first_name: Holger
  full_name: Karl, Holger
  id: '126'
  last_name: Karl
title: Microservice-based Execution Environment for Service Compositions
type: bachelorsthesis
user_id: '477'
year: '2017'
...
---
_id: '220'
author:
- first_name: Matthias
  full_name: Keller, Matthias
  last_name: Keller
citation:
  ama: Keller M. <i>Application Deployment at Distributed Clouds</i>. Universität
    Paderborn; 2016.
  apa: Keller, M. (2016). <i>Application Deployment at Distributed Clouds</i>. Universität
    Paderborn.
  bibtex: '@book{Keller_2016, title={Application Deployment at Distributed Clouds},
    publisher={Universität Paderborn}, author={Keller, Matthias}, year={2016} }'
  chicago: Keller, Matthias. <i>Application Deployment at Distributed Clouds</i>.
    Universität Paderborn, 2016.
  ieee: M. Keller, <i>Application Deployment at Distributed Clouds</i>. Universität
    Paderborn, 2016.
  mla: Keller, Matthias. <i>Application Deployment at Distributed Clouds</i>. Universität
    Paderborn, 2016.
  short: M. Keller, Application Deployment at Distributed Clouds, Universität Paderborn,
    2016.
date_created: 2017-10-17T12:41:34Z
date_updated: 2022-01-06T06:55:22Z
ddc:
- '040'
department:
- _id: '75'
file:
- access_level: closed
  content_type: application/pdf
  creator: florida
  date_created: 2018-03-21T10:37:11Z
  date_updated: 2018-03-21T10:37:11Z
  file_id: '1513'
  file_name: 220-Keller_PhD-Theses_01.pdf
  file_size: 7467820
  relation: main_file
  success: 1
file_date_updated: 2018-03-21T10:37:11Z
has_accepted_license: '1'
project:
- _id: '1'
  name: SFB 901
- _id: '6'
  name: SFB 901 - Subprojekt A2
- _id: '16'
  name: SFB 901 - Subprojekt C4
- _id: '2'
  name: SFB 901 - Project Area A
- _id: '4'
  name: SFB 901 - Project Area C
publisher: Universität Paderborn
status: public
supervisor:
- first_name: Holger
  full_name: Karl, Holger
  id: '126'
  last_name: Karl
title: Application Deployment at Distributed Clouds
type: dissertation
user_id: '477'
year: '2016'
...
---
_id: '264'
author:
- first_name: Philip
  full_name: Wette, Philip
  last_name: Wette
citation:
  ama: Wette P. <i>Optimizing Software-Defined Networks Using Application-Layer Knowledge</i>.
    Universität Paderborn; 2015.
  apa: Wette, P. (2015). <i>Optimizing Software-Defined Networks using Application-Layer
    Knowledge</i>. Universität Paderborn.
  bibtex: '@book{Wette_2015, title={Optimizing Software-Defined Networks using Application-Layer
    Knowledge}, publisher={Universität Paderborn}, author={Wette, Philip}, year={2015}
    }'
  chicago: Wette, Philip. <i>Optimizing Software-Defined Networks Using Application-Layer
    Knowledge</i>. Universität Paderborn, 2015.
  ieee: P. Wette, <i>Optimizing Software-Defined Networks using Application-Layer
    Knowledge</i>. Universität Paderborn, 2015.
  mla: Wette, Philip. <i>Optimizing Software-Defined Networks Using Application-Layer
    Knowledge</i>. Universität Paderborn, 2015.
  short: P. Wette, Optimizing Software-Defined Networks Using Application-Layer Knowledge,
    Universität Paderborn, 2015.
date_created: 2017-10-17T12:41:43Z
date_updated: 2022-01-06T06:57:20Z
ddc:
- '040'
department:
- _id: '75'
file:
- access_level: closed
  content_type: application/pdf
  creator: florida
  date_created: 2018-03-21T09:34:36Z
  date_updated: 2018-03-21T09:34:36Z
  file_id: '1481'
  file_name: 264-Dissertation_-_Wette.pdf
  file_size: 8031107
  relation: main_file
  success: 1
file_date_updated: 2018-03-21T09:34:36Z
has_accepted_license: '1'
project:
- _id: '1'
  name: SFB 901
- _id: '6'
  name: SFB 901 - Subprojekt A2
- _id: '16'
  name: SFB 901 - Subprojekt C4
- _id: '2'
  name: SFB 901 - Project Area A
- _id: '4'
  name: SFB 901 - Project Area C
publisher: Universität Paderborn
status: public
supervisor:
- first_name: Holger
  full_name: Karl, Holger
  id: '126'
  last_name: Karl
title: Optimizing Software-Defined Networks using Application-Layer Knowledge
type: dissertation
user_id: '477'
year: '2015'
...
---
_id: '343'
author:
- first_name: Jörn
  full_name: Künsemöller, Jörn
  last_name: Künsemöller
citation:
  ama: Künsemöller J. <i>Tragedy of the Common Cloud - Game Theory on the Infrastructure-as-a-Service
    Market</i>. Universität Paderborn; 2014.
  apa: Künsemöller, J. (2014). <i>Tragedy of the Common Cloud - Game Theory on the
    Infrastructure-as-a-Service Market</i>. Universität Paderborn.
  bibtex: '@book{Künsemöller_2014, title={Tragedy of the Common Cloud - Game Theory
    on the Infrastructure-as-a-Service Market}, publisher={Universität Paderborn},
    author={Künsemöller, Jörn}, year={2014} }'
  chicago: Künsemöller, Jörn. <i>Tragedy of the Common Cloud - Game Theory on the
    Infrastructure-as-a-Service Market</i>. Universität Paderborn, 2014.
  ieee: J. Künsemöller, <i>Tragedy of the Common Cloud - Game Theory on the Infrastructure-as-a-Service
    Market</i>. Universität Paderborn, 2014.
  mla: Künsemöller, Jörn. <i>Tragedy of the Common Cloud - Game Theory on the Infrastructure-as-a-Service
    Market</i>. Universität Paderborn, 2014.
  short: J. Künsemöller, Tragedy of the Common Cloud - Game Theory on the Infrastructure-as-a-Service
    Market, Universität Paderborn, 2014.
date_created: 2017-10-17T12:41:58Z
date_updated: 2022-01-06T06:59:16Z
ddc:
- '040'
department:
- _id: '75'
file:
- access_level: closed
  content_type: application/pdf
  creator: florida
  date_created: 2018-03-20T07:28:26Z
  date_updated: 2018-03-20T07:28:26Z
  file_id: '1421'
  file_name: 343-2014_Diss_Kuensemoeller.pdf
  file_size: 1378657
  relation: main_file
  success: 1
file_date_updated: 2018-03-20T07:28:26Z
has_accepted_license: '1'
project:
- _id: '1'
  name: SFB 901
- _id: '6'
  name: SFB 901 - Subprojekt A2
- _id: '7'
  name: SFB 901 - Subprojekt A3
- _id: '2'
  name: SFB 901 - Project Area A
publisher: Universität Paderborn
status: public
supervisor:
- first_name: Holger
  full_name: Karl, Holger
  id: '126'
  last_name: Karl
title: Tragedy of the Common Cloud - Game Theory on the Infrastructure-as-a-Service
  Market
type: dissertation
user_id: '477'
year: '2014'
...
---
_id: '376'
abstract:
- lang: eng
  text: Radio access networks (RANs) have become one of the largest energy consumers
    of communication technology [LLH+13] and their energy consumption is predicted
    to increase [FFMB11]. To reduce the energy consumption of RANs different techniques
    have been proposed. One of the most promising techniques is the use of a low-power
    sleep mode. However, a sleep mode can also reduce the performance. In this dissertation,
    I quantify how much energy can be conserved with a sleep mode and which negative
    effects it has on the performance of RANs. Additionally, I analyze how a sleep
    mode can be enabled more often and how the performance can be kept high. First,
    I quantify the effect of power-cycle durations on energy consumption and latency
    in an abstract queuing system. This results in a trade-off between energy consumption
    and latency for a single base station (BS). Second, I show that considering a
    network as a whole (instead of each BS individually) allows the energy consumption
    to be reduced even further. After these analyses, which are not specific for RANs,
    I study RANs for the rest of the dissertation. RANs need to both detect and execute
    the requests of users. Because detection and execution of requests have different
    requirements, I analyze them independently. I quantify how the number of active
    BSs can be reduced if the detection ranges of BSs are increased by cooperative
    transmissions. Next, I analyze how more BSs can be deactivated if the remaining
    active BSs cooperate to transmit data to the users. However, in addition to increasing
    the range, cooperative transmissions also radiate more power. This results in
    higher interference for other users which slows their transmissions down and,
    thus, increases energy consumption. Therefore, I describe how the radiated power
    of cooperative transmissions can be reduced if instantaneous channel knowledge
    is available. Because the implementation in real hardware is impractical for demonstration
    purposes, I show the results of a simulation that incorporates all effects I studied
    analytically earlier. In conclusion, I show that a sleep mode can reduce the energy
    consumption of RANs if applied correctly. To apply a sleep mode correctly, it
    is necessary to consider power-cycle durations, power profiles, and the interaction
    of BSs. When this knowledge is combined the energy consumption of RANs can be
    reduced with only a slight loss of performance. Because this results in a trade-off
    between energy consumption and performance, each RAN operator has to decide which
    trade-off is preferred.
author:
- first_name: Matthias
  full_name: Herlich, Matthias
  last_name: Herlich
citation:
  ama: Herlich M. <i>Reducing Energy Consumption of Radio Access Networks</i>. Universität
    Paderborn; 2014.
  apa: Herlich, M. (2014). <i>Reducing Energy Consumption of Radio Access Networks</i>.
    Universität Paderborn.
  bibtex: '@book{Herlich_2014, title={Reducing Energy Consumption of Radio Access
    Networks}, publisher={Universität Paderborn}, author={Herlich, Matthias}, year={2014}
    }'
  chicago: Herlich, Matthias. <i>Reducing Energy Consumption of Radio Access Networks</i>.
    Universität Paderborn, 2014.
  ieee: M. Herlich, <i>Reducing Energy Consumption of Radio Access Networks</i>. Universität
    Paderborn, 2014.
  mla: Herlich, Matthias. <i>Reducing Energy Consumption of Radio Access Networks</i>.
    Universität Paderborn, 2014.
  short: M. Herlich, Reducing Energy Consumption of Radio Access Networks, Universität
    Paderborn, 2014.
date_created: 2017-10-17T12:42:05Z
date_updated: 2022-01-06T06:59:35Z
ddc:
- '040'
department:
- _id: '75'
file:
- access_level: closed
  content_type: application/pdf
  creator: florida
  date_created: 2018-03-20T07:14:52Z
  date_updated: 2018-03-20T07:14:52Z
  file_id: '1398'
  file_name: 376-Herlich-Dissertation.pdf
  file_size: 1476366
  relation: main_file
  success: 1
file_date_updated: 2018-03-20T07:14:52Z
has_accepted_license: '1'
project:
- _id: '1'
  name: SFB 901
- _id: '6'
  name: SFB 901 - Subprojekt A2
- _id: '2'
  name: SFB 901 - Project Area A
publisher: Universität Paderborn
status: public
supervisor:
- first_name: Holger
  full_name: Karl, Holger
  id: '126'
  last_name: Karl
title: Reducing Energy Consumption of Radio Access Networks
type: dissertation
user_id: '477'
year: '2014'
...