| 1. |
- Brenning, Magnus, et al.
(författare)
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NeTraWeb - A Web-Based Traffic Flow Performance Meter
- 2006
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Ingår i: 4th Swedish National Computer Networking Workshop SNCNW 2006.
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Konferensbidrag (refereegranskat)abstract
- This paper presents a web-based traffic flow performance meter. The NeTraWeb tool configures and automates the measurement activities, including storage and presentation of the main performance parameters.
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| 2. |
- Lindh, Thomas, 1950-, et al.
(författare)
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A performance monitoring method for wireless sensor networks
- 2008
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Ingår i: PETRA '08 Proceedings of the 1st international conference on PErvasive Technologies Related to Assistive Environments. - New York : ACM. - 9781605580678
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Konferensbidrag (refereegranskat)abstract
- This paper presents a monitoring method and its implementation as a light-weight end-to-end performance meter for quality-demanding applications in wireless sensor networks. The use of performance feedback information for control and management is also considered. The method is evaluated in a wireless sensor network testbed for healthcare applications.
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| 3. |
- Lindh, Thomas, 1950-, et al.
(författare)
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Performance Control in Wireless Sensor Networks
- 2009
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Ingår i: Pervasive Computing Technologies for Healthcare, 2009. PervasiveHealth 2009. 3rd International Conference on. - : IEEE. - 9789639799424
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Konferensbidrag (refereegranskat)abstract
- This paper presents an implementation of a method for performance control in wireless body sensor networks based on measurement feedback, especially targeted for demanding healthcare applications.
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| 4. |
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| 5. |
- Orhan, Ibrahim, 1976-, et al.
(författare)
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Measurement-Based Admission Control in Wireless Sensor Networks
- 2010
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Ingår i: 2010 FOURTH INTERNATIONAL CONFERENCE ON SENSOR TECHNOLOGIES AND APPLICATIONS (SENSORCOMM). - : IEEE. - 9780769540962 ; , s. 447-452
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Konferensbidrag (refereegranskat)abstract
- Wireless sensor networks have today emerged as a feasible infrastructure for healthcare applications. This paper addresses the non-trivial performance problems in contention-based wireless networks. We present a method for admission control in contention-based networks, implemented as a component of a performance management system. The test results show that admission control can improve the predictability and level of performance in wireless sensor networks. The system can be used as a tool for dimensioning and configuration as well as for real-time admission control. The often unpredictable dynamics in contention-based access networks means that continuous performance control is needed to maintain a desired quality of service.
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| 6. |
- Orhan, Ibrahim, 1976-, et al.
(författare)
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Measurement-Based Performance and Admission Controlin Wireless Sensor Networks
- 2011
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Ingår i: International Journal on Advances in Systems and Measurements. - : IARIA. - 1942-261X. ; 4:1-2, s. 32-45
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Tidskriftsartikel (refereegranskat)abstract
- This journal paper presents a measurement-basedperformance management system for contention-based wireless sensor networks. Its main features are admission andperformance control based on measurement data from lightweight performance meters in the endpoints. Test results showthat admission and performance control improve the predictability and level of performance. The system can also be used asa tool for dimensioning and configuration of services in wireless sensor networks. Among the rapidly emerging services inwireless sensor networks we focus on healthcare applications
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| 7. |
- Orhan, Ibrahim, 1976-
(författare)
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Performance Monitoring and Control in Wireless Sensor Networks
- 2012
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Licentiatavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Wireless personal area networks have emerged as an important communication infrastructure in areas such as at-home healthcare and home automation, independent living and assistive technology, as well as sports and wellness. Wireless personal area networks, including body sensor networks, are becoming more mature and are considered to be a realistic alternative as communication infrastructure for demanding services. However, to transmit data from e.g., an ECG in wireless networks is also a challenge, especially if multiple sensors compete for access. Contention-based networks offer simplicity and utilization advantages, but the drawback is lack of predictable performance. Recipients of data sent in wireless sensor networks need to know whether they can trust the information or not. Performance measurements, monitoring and control is of crucial importance for medical and healthcare applications in wireless sensor networks.This thesis focuses on development, prototype implementation and evaluation of a performance management system with performance and admission control for wireless sensor networks. Furthermore, an implementation of a new method to compensate for clock drift between multiple wireless sensor nodes is also shown. Errors in time synchronization between nodes in Bluetooth networks, resulting in inadequate data fusion, are also analysed.
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| 8. |
- Wåhslén, Jonas, et al.
(författare)
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Local Time Synchronization in Bluetooth Piconets for Data Fusion Using Mobile Phones
- 2011
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Ingår i: BSN 2011. - 9780769544311 ; , s. 113-138
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Konferensbidrag (refereegranskat)abstract
- This paper presents a method to synchronize the clocks in a Bluetooth piconet from the application layer in a mobile phone. It adapts algorithms for time synchronization of distributed systems and the Internet to Bluetooth networks. The performance issues that cause problems for data synchronization between master and slaves in Bluetooth are highlighted. The tests show that the synchronization error is limited to one sampling time.
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