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Publications (10 of 29) Show all publications
Dai, W., Riliskis, L., Vyatkin, V., Osipov, E. & Delsing, J. (2015). A Configurable Cloud-Based Testing Infrastructure for Interoperable Distributed Automation Systems (ed.). In: (Ed.), (Ed.), IECON 2014: 40th Annual Conference of the IEEE Industrial Electronics Society, Dallas, TX, USA , Oct. 29 2014-Nov. 1 2014. Paper presented at Annual Conference of the IEEE Industrial Electronics Society : 29/10/2014 - 01/11/2014 (pp. 2492-2498). Piscataway, NJ: IEEE Communications Society
Open this publication in new window or tab >>A Configurable Cloud-Based Testing Infrastructure for Interoperable Distributed Automation Systems
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2015 (English)In: IECON 2014: 40th Annual Conference of the IEEE Industrial Electronics Society, Dallas, TX, USA , Oct. 29 2014-Nov. 1 2014, Piscataway, NJ: IEEE Communications Society, 2015, p. 2492-2498Conference paper, Published paper (Refereed)
Abstract [en]

The interoperability between various automation systems is considered as one of the major character of future automation systems. Service-oriented Architecture is a possible interoperability enabler between legacy and future automation systems. In order to prove the interoperability between those systems, a verification framework is essential. This paper proposes a configurable cloud-based validation environment for interoperability tests between various distributed automation systems. The testing framework is implemented in a multi-layer structure which provides automated closed-loop testing from the protocol level to the system level. The testing infrastructure is also capable for simulating automation systems as well as wireless sensor networks in the cloud. Test cases could be automatically generated and executed by the framework.

Place, publisher, year, edition, pages
Piscataway, NJ: IEEE Communications Society, 2015
National Category
Computer Sciences Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Dependable Communication and Computation Systems; Industrial Electronics
Identifiers
urn:nbn:se:ltu:diva-28652 (URN)10.1109/IECON.2014.7048856 (DOI)2-s2.0-84949928200 (Scopus ID)286d0ae3-a565-4547-a1ef-8003456438a9 (Local ID)286d0ae3-a565-4547-a1ef-8003456438a9 (Archive number)286d0ae3-a565-4547-a1ef-8003456438a9 (OAI)
Conference
Annual Conference of the IEEE Industrial Electronics Society : 29/10/2014 - 01/11/2014
Note
Validerad; 2015; Nivå 1; Bibliografisk uppgift: 1553-572X http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7048467; 20141002 (wildai)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-07-10Bibliographically approved
Riliskis, L. & Osipov, E. (2015). Symphony: A Framework for Accurate and Holistic WSN Simulation (ed.). Paper presented at . Sensors, 15(3), 4677-4699
Open this publication in new window or tab >>Symphony: A Framework for Accurate and Holistic WSN Simulation
2015 (English)In: Sensors, ISSN 1424-8220, E-ISSN 1424-8220, Vol. 15, no 3, p. 4677-4699Article in journal (Refereed) Published
Abstract [en]

Research on wireless sensor networks has progressed rapidly over the last decade, and these technologies have been widely adopted for both industrial and domestic uses. Several operating systems have been developed, along with a multitude of network protocols for all layers of the communication stack. Industrial Wireless Sensor Network (WSN) systems must satisfy strict criteria and are typically more complex and larger in scale than domestic systems. Together with the non-deterministic behavior of network hardware in real settings, this greatly complicates the debugging and testing of WSN functionality. To facilitate the testing, validation, and debugging of large-scale WSN systems, we have developed a simulation framework that accurately reproduces the processes that occur inside real equipment, including both hardware- and software-induced delays. The core of the framework consists of a virtualized operating system and an emulated hardware platform that is integrated with the general purpose network simulator ns-3. Our framework enables the user to adjust the real code base as would be done in real deployments and also to test the boundary effects of different hardware components on the performance of distributed applications and protocols. Additionally we have developed a clock emulator with several different skew models and a component that handles sensory data feeds. The new framework should substantially shorten WSN application development cycles.

National Category
Computer Sciences
Research subject
Dependable Communication and Computation Systems
Identifiers
urn:nbn:se:ltu:diva-15178 (URN)10.3390/s150304700 (DOI)eaaa971b-cf8d-468c-bf31-f6f5bd15c1c4 (Local ID)eaaa971b-cf8d-468c-bf31-f6f5bd15c1c4 (Archive number)eaaa971b-cf8d-468c-bf31-f6f5bd15c1c4 (OAI)
Note
Validerad; 2015; Nivå 2; 20131127 (lauril)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-06-05Bibliographically approved
Riliskis, L. & Osipov, E. (2014). Maestro: an orchestration framework for large scale WSN simulations (ed.). Paper presented at . Sensors, 14(3), 5392-5414
Open this publication in new window or tab >>Maestro: an orchestration framework for large scale WSN simulations
2014 (English)In: Sensors, ISSN 1424-8220, E-ISSN 1424-8220, Vol. 14, no 3, p. 5392-5414Article in journal (Refereed) Published
Abstract [en]

Contemporary wireless sensor networks (WSNs) have evolved into large and complex systems and are one of the main technologies used in cyber-physical systems and the Internet of Things. Extensive research on WSNs has led to the development of diverse solutions at all levels of software architecture, including protocol stacks for communications. This multitude of solutions is due to the limited computational power and restrictions on energy consumption that must be accounted for when designing typical WSN systems. It is therefore challenging to develop, test and validate even small WSN applications, and this process can easily consume significant resources. Simulations are inexpensive tools for testing, verifying and generally experimenting with new technologies in a repeatable fashion. Consequently, as the size of the systems to be tested increases, so does the need for large-scale simulations. This article describes a tool called Maestro for the automation of large-scale simulation and investigates the feasibility of using cloud computing facilities for such task. Using tools that are built into Maestro, we demonstrate a feasible approach for benchmarking cloud infrastructure in order to identify cloud Virtual Machine (VM)instances that provide an optimal balance of performance and cost for a given simulation.

National Category
Computer Sciences
Research subject
Dependable Communication and Computation Systems
Identifiers
urn:nbn:se:ltu:diva-13128 (URN)10.3390/s140305392 (DOI)000336783300081 ()24647123 (PubMedID)2-s2.0-84896441869 (Scopus ID)c4d5afc7-aed5-4840-96ae-05cd0429aca8 (Local ID)c4d5afc7-aed5-4840-96ae-05cd0429aca8 (Archive number)c4d5afc7-aed5-4840-96ae-05cd0429aca8 (OAI)
Note
Validerad; 2014; 20131127 (lauril)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Riliskis, L. (2014). Methodologies and Practical Tools for Realistic Large Scale Simulations of Wireless Sensor Networks (ed.). (Doctoral dissertation). Paper presented at . : Luleå tekniska universitet
Open this publication in new window or tab >>Methodologies and Practical Tools for Realistic Large Scale Simulations of Wireless Sensor Networks
2014 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Wireless Sensor Networks (WSNs) have evolved into large and complex systems and are now one of the major technologies used in Cyber-Physical Systems (CPS) and the Internet of Things (IoT).Extensive research on WSNs has led to the development of diverse solutions for all layers of software architecture, including protocol stacks for communications. For example, more than one hundred distinct medium access control protocols and fifty routing and transport-level solutions have been proposed. This multitude of solutions is due to the limited computational power and restrictions on energy consumption that must be accounted for when designing typical WSN systems. The performance of a given high-level application task may depend strongly on the specific composition of the system's protocol stack, the run-time specifics of the underlying operating system, and the potential non-deterministic behavior of the devices used in the network. This makes it very difficult to identify the optimal software architecture for any particular situation. In many cases, software components must be developed specifically for each combination of task, environment and hardware. It is therefore challenging to develop, test, and validate even small WSN applications and this process can easily consume significant resources.This dissertation investigates various approaches for making the testing and validation of large scale WSN systems more efficient. The theoretical contribution presented is a method that enables the accurate reproduction of phenomena occurring inside real sensor node hardware and software at all layers of abstraction. This will expedite the design, development, and testing of WSN functionality.The main technical contribution is a prototype of a simulation framework named Symphony, which implements the proposed method. The framework's key feature is its ability to perform ultra-large scale holistic experiments on WSN functionality with millions of nodes using configurable levels of abstraction. The behavior observable using Symphony is very similar to the run-time behavior that developers would observe in reality. This is achieved via the virtualization of real-world operating systems and by using measurement-based hardware emulation and software component models.The impact of this dissertation is twofold. First, the proposed methodology and associated development framework will facilitate the education and training of specialists in the future IoT. Second, from a more long-term perspective, the thesis paves the way to solutions for several critical problems that have been highlighted in many strategic research agendas concerning the development of future industrial systems, including the streamlined validation of equipment and service interoperability across different vendors and application domains, and the rapid integrated design of future large scale CPS.

Place, publisher, year, edition, pages
Luleå tekniska universitet, 2014. p. 228
Series
Doctoral thesis / Luleå University of Technology 1 jan 1997 → …, ISSN 1402-1544
National Category
Computer Sciences
Research subject
Dependable Communication and Computation Systems
Identifiers
urn:nbn:se:ltu:diva-17052 (URN)15249811-095a-44bc-8d94-228cf838be3c (Local ID)978-91-7439-827-4 (ISBN)978-91-7439-828-1 (ISBN)15249811-095a-44bc-8d94-228cf838be3c (Archive number)15249811-095a-44bc-8d94-228cf838be3c (OAI)
Note
Godkänd; 2014; 20131218 (lauril); Nedanstående person kommer att disputera för avläggande av teknologie doktorsexamen. Namn: Laurynas Riliskis Ämne: Datorkommunikation/Computer Networking Avhandling: Methodologies and Practical Tools for Realistic Large Scale Simulations of Wireless Sensor Networks Opponent: Associate Professor Philip Levis, Computer Science and Electrical Engineering Departments, Stanford University, USA. Ordförande: Biträdande professor Evgeny Osipov, Avd för datavetenskap, Institutionen för system- och rymdteknik, Luleå tekniska universitet. Tid: Måndag den 10 februari 2014, kl 10.00 Plats: A109, Luleå tekniska universitetAvailable from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-06-05Bibliographically approved
Osipov, E., Riliskis, L., Lehikoinen, T., Kämäräinen, J. & Pellinen, M. (2014). Simulation Based Studies of Machine-to-Machine Communications (ed.). In: (Ed.), Ivan Ganchev; Marilla Curado; Andreas Kassler (Ed.), Wireless Networking for Moving Objects: Protocols, Architectures, Tools, Services and Applications (pp. 239-254). Paper presented at . New York: Encyclopedia of Global Archaeology/Springer Verlag
Open this publication in new window or tab >>Simulation Based Studies of Machine-to-Machine Communications
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2014 (English)In: Wireless Networking for Moving Objects: Protocols, Architectures, Tools, Services and Applications, New York: Encyclopedia of Global Archaeology/Springer Verlag, 2014, p. 239-254Chapter in book (Refereed)
Abstract [en]

Simulations are essential for understanding complex systems such as Cyber Physical Systems. The creation of reliable multidisciplinary simulation tools that can be used to support the entire development process has been identified as a major scientific goal in several research roadmaps and agendas for the coming 15 years. This chapter presents two showcases, which highlight the necessity of trustworthy simulation tools, especially in the case of ma- chine-to-machine communications. First the performance of UWB radio technology in context of vehicle automation is evaluated. Second the experiences from performing the entire cycle of protocol development for machine-to-machine communications are presented. The two presented showcases support a conclusion that a successful simulation platform should have a us- er-friendly simulation framework and models that support virtualization. This will enable the incorporation of simulations into day-to-day engineering prac- tice and thereby shrink the gap between the real and the virtual developing environments.

Place, publisher, year, edition, pages
New York: Encyclopedia of Global Archaeology/Springer Verlag, 2014
Series
Lecture Notes in Computer Science, ISSN 0302-9743 ; 8611
National Category
Computer Sciences
Research subject
Dependable Communication and Computation Systems
Identifiers
urn:nbn:se:ltu:diva-21294 (URN)10.1007/978-3-319-10834-6_13 (DOI)2-s2.0-84927642982 (Scopus ID)d1bb9e7e-3da2-47da-bd2e-8d64b0a5b3a9 (Local ID)978-3-319-10833-9 (ISBN)978-3-319-10834-6 (ISBN)d1bb9e7e-3da2-47da-bd2e-8d64b0a5b3a9 (Archive number)d1bb9e7e-3da2-47da-bd2e-8d64b0a5b3a9 (OAI)
Note
Godkänd; 2014; 20140602 (lauril)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Osipov, E., Riliskis, L., Eldstål-Damlin, A., Burakov, M., Nordberg, M. & Wang, M. (2013). An improved model of LTE random access channel (ed.). In: (Ed.), (Ed.), 2013 IEEE 77th Vehicular Technology Conference (VTC Spring 2013): 2-5 June 2013, Dresden, Germany. Paper presented at IEEE Vehicular Technology Conference : 1st IEEE Workshop on electric vehicle networks for Smart grid applications 02/06/2013 - 05/06/2013. Piscataway, NJ: IEEE Communications Society
Open this publication in new window or tab >>An improved model of LTE random access channel
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2013 (English)In: 2013 IEEE 77th Vehicular Technology Conference (VTC Spring 2013): 2-5 June 2013, Dresden, Germany, Piscataway, NJ: IEEE Communications Society, 2013Conference paper, Published paper (Refereed)
Abstract [en]

In this article, we report on a mathematical model for the throughput and delay of LTE's Random Access Channel (RACH). The model is an improvement of a cell-level Markov model of Multichannel slotted ALOHA proposed previously in the literature. The improvements concern accounting for a possibility of contention resolution in the case when terminals select same preambles and distinguishing initially-transmitting nodes from retransmitting nodes. The improved model is verified and agrees with measurements obtained from a discrete-time event-based simulator of an LTE cell

Place, publisher, year, edition, pages
Piscataway, NJ: IEEE Communications Society, 2013
Series
Proceedings of the IEEE VTS Vehicular Technology Conference, ISSN 1550-2252
National Category
Computer Sciences
Research subject
Dependable Communication and Computation Systems
Identifiers
urn:nbn:se:ltu:diva-28530 (URN)25915b7d-1d7d-41f1-9415-4651fc02d11a (Local ID)9781467363372 (ISBN)25915b7d-1d7d-41f1-9415-4651fc02d11a (Archive number)25915b7d-1d7d-41f1-9415-4651fc02d11a (OAI)
Conference
IEEE Vehicular Technology Conference : 1st IEEE Workshop on electric vehicle networks for Smart grid applications 02/06/2013 - 05/06/2013
Note
Godkänd; 2014; 20130202 (lauril)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-06-05Bibliographically approved
Riliskis, L. & Osipov, E. (2013). Coexistence of Cloud Technology and IT Infrastructure in Higher Education (ed.). In: (Ed.), (Ed.), 2013 Frontiers in Education Conference (FIE 2013): Oklahoma City, Olöahoma, USA, 23-26 October 2013. Paper presented at Annual Frontiers in Education Conference : 23/10/2013 - 26/10/2013 (pp. 805-807). Piscataway, NJ: IEEE Communications Society
Open this publication in new window or tab >>Coexistence of Cloud Technology and IT Infrastructure in Higher Education
2013 (English)In: 2013 Frontiers in Education Conference (FIE 2013): Oklahoma City, Olöahoma, USA, 23-26 October 2013, Piscataway, NJ: IEEE Communications Society, 2013, p. 805-807Conference paper, Published paper (Refereed)
Abstract [en]

Most of the current IT-infrastructures at Universities were designed and deployed at times of mostly campus based education, following the "one solution fits all" approach. Nowadays, with the growing number of courses given on distance and unique requirements on software content in almost every course in all disciplines the existing infrastructure became extremely stiff and inefficient. In many cases it fails providing flexible services with acceptable quality both to teachers and students. Another problem appears with the all growing mobility of students in the scope of Erasmus Mundus programme and numerous bilateral agreements between universities. The uncertainty in number of students to be handled in each semester (even in the scope of a particular course) makes it difficult for the IT departments to estimate the need and to correspondingly dimension the IT-system. Normally, IT administrations at universities over-dimension their infrastructures in order to stay competitive and provide satisfactory quality of experience. This obviously leads to an increased cost associated with purchasing and maintaining the equipment. Besides the economical component the environmental impact becomes one of the critical factors that universities have to deal with nowadays. Universities as governmental organizations need to take environmental considerations into account when implementing European Union policies on ICT sustainability. Cloud technology and specifically infrastructure as a service (IaaS) providers is an excellent alternative to an outdated inefficient local infrastructures. Early 2012 Luleå University of Technology started a project on adopting cloud technology for implementing the university's IT-infrastructure. This work-in-progress article will describe the results of its pre-study phase aiming at understanding a feasibility of integrating and/or migrating key infrastructure components into an IaaS system and opening ways for making university's resources more accessible to wider public. Numbers of logistical, technical and education related challenges, however, make such transition far from being trivial. This article focuses on the educational aspect of the pre-study. Specifically, work flows in education process of several courses in different disciplines in natural and engineering sciences were analysed from the student and teacher perspectives. In the article a schematic of a sustainable IT infrastructure adjusted to the needs of higher education will be drafted. Further, technical readiness and challenges of using cloud technology for university scale IT-infrastructure will be discussed.

Place, publisher, year, edition, pages
Piscataway, NJ: IEEE Communications Society, 2013
Series
Frontiers in Education Conference. Conference Proceedings, ISSN 1539-4565
National Category
Computer Sciences
Research subject
Dependable Communication and Computation Systems
Identifiers
urn:nbn:se:ltu:diva-29852 (URN)10.1109/FIE.2013.6684937 (DOI)2-s2.0-84893341235 (Scopus ID)376880b1-1e45-4887-bd86-fff43d0d51d9 (Local ID)376880b1-1e45-4887-bd86-fff43d0d51d9 (Archive number)376880b1-1e45-4887-bd86-fff43d0d51d9 (OAI)
Conference
Annual Frontiers in Education Conference : 23/10/2013 - 26/10/2013
Note
Godkänd; 2014; 20130618 (lauril)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-07-10Bibliographically approved
Osipov, E. & Riliskis, L. (2013). Educating Innovators of Future Internet of Things (ed.). In: (Ed.), (Ed.), 2013 Frontiers in Education Conference (FIE 2013): Oklahoma City, Olöahoma, USA, 23-26 October 2013. Paper presented at Annual Frontiers in Education Conference : 23/10/2013 - 26/10/2013 (pp. 1352-1358). Piscataway, NJ: IEEE Communications Society
Open this publication in new window or tab >>Educating Innovators of Future Internet of Things
2013 (English)In: 2013 Frontiers in Education Conference (FIE 2013): Oklahoma City, Olöahoma, USA, 23-26 October 2013, Piscataway, NJ: IEEE Communications Society, 2013, p. 1352-1358Conference paper, Published paper (Refereed)
Abstract [en]

Clouds, Communicating Machines, Social Networking, Big Data, innovative web-services are the buzz words that currently ramp up the interest in computer science education amongst potential students. The current trend in CS education is to introduce an innovation component into the content of undergraduate and graduate courses facilitating out of the box thinking. In the fall of 2012 the content of three undergraduate courses running in parallel at Luleå University of Technology were aligned in the theoretical and practical parts projecting the individual contents to a holistic scenario of the Internet of Things. The practical goal of the trial was to provide skills of developing innovative, cutting-edge IT solutions. The trial courses were: Wireless sensor networks, Distributed applications, and Network programming. The first two courses are given on the fourth year while the later course is given on the second year of the CS program. The theoretical content of three courses allowed creating a scenario covering the whole technology chain of the Internet of Things: gathering and communicating sensory data; scalable and distributed processing of big data; value-added, human relevant network services. In the practical part students in the three courses (total 60) acted as start-up companies in the respective technology domain. These ``start-ups'' were assigned a task to deliver a common holistic system given time, performance and budget constrains. This task required students in a particular course to constantly communicate to other students outside the course's boundaries. Through these activities students were trained on skills for industrial level development and integration of complex IT systems. On a technical side all courses were conducted using Amazon Web Services as a common computing platform. This choice allowed us to draw interesting conclusions about students work load, the degree of their actual involvement in the learning process as well as economical costs. In the sensor network course a pedagogy-oriented, close-to-reality, real-time simulation environment was used to substantially facilitate experimentation with large quantities of communicating sensors. Using AWS as a platform for the other two courses gave students a possibility of experimenting with hundreds of servers while training the skills in developing commercial scale software. As a result of evaluations in the respective courses we conjecture that the goal of the trial is successfully achieved. The innovative component was highly valued by the majority of students. Most of the students confirmed that exposing them to the ``big picture'' and product-based learning substantially increased their involvement and motivation in the learning process. On the technical side several non-conventional applications of the theoretical content were observed in all three courses. One of the successful resulting systems featured a unique integration of real-time sensory data with a popular social network. The full article will describe the details of the courses' structure along with the associated logistical and technical challenges. We present the illustrative achievements as well as the analysis of students' feedback. The article will be concluded with the discussion of learned positive and negative lessons put in the context of recent theories in CS education.

Place, publisher, year, edition, pages
Piscataway, NJ: IEEE Communications Society, 2013
Series
Frontiers in Education Conference. Conference Proceedings, ISSN 1539-4565
National Category
Computer Sciences
Research subject
Dependable Communication and Computation Systems
Identifiers
urn:nbn:se:ltu:diva-32664 (URN)10.1109/FIE.2013.6685053 (DOI)2-s2.0-84893251215 (Scopus ID)7384c2d1-b4e3-4282-8227-c7a0a6d5a2ea (Local ID)7384c2d1-b4e3-4282-8227-c7a0a6d5a2ea (Archive number)7384c2d1-b4e3-4282-8227-c7a0a6d5a2ea (OAI)
Conference
Annual Frontiers in Education Conference : 23/10/2013 - 26/10/2013
Note
Godkänd; 2014; 20130618 (lauril)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-07-10Bibliographically approved
Riliskis, L. & Osipov, E. (2013). Symphony - simulation, emulation and virtualization framework for accurate WSN experimentation (ed.). In: (Ed.), (Ed.), ICSE 2013: proceedings of the 2013 International Conference on Software Engineering,. Paper presented at International Conference on Software Engineering : 18/05/2013 - 26/05/2013 (pp. 1-6). New York: ACM Digital Library
Open this publication in new window or tab >>Symphony - simulation, emulation and virtualization framework for accurate WSN experimentation
2013 (English)In: ICSE 2013: proceedings of the 2013 International Conference on Software Engineering,, New York: ACM Digital Library, 2013, p. 1-6Conference paper, Published paper (Refereed)
Abstract [en]

We have developed a simulation framework for testing and validation of WSN applications which closely resembles processes happening inside real equipment including hardware and software induced delays. The core of the framework consists of a virtualized operating system and an emulated hardware platform integrated with a general purpose network simulator ns-3. Besides an ability of experimenting with the real code base as in the real deployments our framework allows testing the boundary effects of different hardware components on the performance of distributed applications and protocols. All in all the presented framework allows to substantially shorten the development cycle of WSN applications.

Place, publisher, year, edition, pages
New York: ACM Digital Library, 2013
National Category
Computer Sciences
Research subject
Dependable Communication and Computation Systems
Identifiers
urn:nbn:se:ltu:diva-31086 (URN)10.1109/SESENA.2013.6612257 (DOI)2-s2.0-84891542598 (Scopus ID)525ce3d7-fb96-4cad-b6de-b26d070a40ea (Local ID)978-1-4673-6269-6 (ISBN)525ce3d7-fb96-4cad-b6de-b26d070a40ea (Archive number)525ce3d7-fb96-4cad-b6de-b26d070a40ea (OAI)
Conference
International Conference on Software Engineering : 18/05/2013 - 26/05/2013
Note
Godkänd; 2013; 20130304 (lauril)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-07-10Bibliographically approved
Wolosz, K., Bodin, U. & Riliskis, L. (2012). A measurement study for predicting throughput from LQI and RSSI (ed.). In: (Ed.), Boris Bellalta (Ed.), Multiple Access Communications: 5th International Workshop, MACOM 2012, Maynooth, Ireland, November 19-20, 2012. Proceedings. Paper presented at International Workshop on Multiple Access Communications : 19/11/2012 - 20/11/2012 (pp. 89-92). Heidelberg: Encyclopedia of Global Archaeology/Springer Verlag
Open this publication in new window or tab >>A measurement study for predicting throughput from LQI and RSSI
2012 (English)In: Multiple Access Communications: 5th International Workshop, MACOM 2012, Maynooth, Ireland, November 19-20, 2012. Proceedings / [ed] Boris Bellalta, Heidelberg: Encyclopedia of Global Archaeology/Springer Verlag, 2012, p. 89-92Conference paper, Published paper (Refereed)
Abstract [en]

Wireless sensor networks (WSN) commonly use ZigBee to communicate, especially when low power consumption is demanded. ZigBee may however provide unpredictable throughput although transmission distances are short. This is especially evident in difficult environments with complicated reflections and various materials through which radio signals need to pass through. Distributed scheduling based on cognitive networking principles may improve both network predictability and overall throughput. This paper presents measurements of key parameters for such cognitive scheduling, and discusses their potential for predicting suitable per-node transmission rates. Results include variability of throughput, RSSI and LQI observed for different transmission powers, transmission ranges, and number of transmitting nodes.

Place, publisher, year, edition, pages
Heidelberg: Encyclopedia of Global Archaeology/Springer Verlag, 2012
Series
Lecture Notes in Computer Science, ISSN 0302-9743 ; 7642
National Category
Computer Sciences
Research subject
Dependable Communication and Computation Systems
Identifiers
urn:nbn:se:ltu:diva-27912 (URN)10.1007/978-3-642-34976-8_10 (DOI)2-s2.0-84869399131 (Scopus ID)17e5e922-78f3-4eb9-b884-cfe88df011e2 (Local ID)978-3-642-34975-1 (ISBN)978-3-642-34976-8 (ISBN)17e5e922-78f3-4eb9-b884-cfe88df011e2 (Archive number)17e5e922-78f3-4eb9-b884-cfe88df011e2 (OAI)
Conference
International Workshop on Multiple Access Communications : 19/11/2012 - 20/11/2012
Projects
CASTT - Centre for Automotive Systems Technologies and Testing
Note
Validerad; 2012; 20120921 (krzwol)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-07-10Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0001-6248-6067

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