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Optimization and load balancing in next generation wireless networks

 NCBIR

 

Project funded by the LIDER program for the years 2013 - 2015, with a value of 1 135 thousand PLN, funded by NCBiR

The aim of the project is to increase the performance of wireless networks (LTE, WiFi and heterogeneous) with simultaneously reducing the cost of construction and maintenance through more efficient use of radio resources and automate the selection of the parameters of the network.

The project started in January 2013 from the construction of discrete event simulation environment to analyze the efficiency of network protocols in mobile networks. Prepared the environment for simulation that reflects the customer's location, switching between base stations and managing their configuration. The environment implements three selected network management protocols.

Performance analysis of mobile wireless networks requires a reliable method to reflect the movement of users. So far developed models do not take properly into account the daily and weekly patterns of user behavior but are focused on the statistical characteristics of the movement of persons. We have developed a new mobility model: RLMM, which allows to define the characteristics of users, such as working hours, commuting between home and work and social activities. The development of reliable models of mobility required to develop a tool to collect data such as the level of the signal and the location of the wireless user. Developed technology to track and monitor user's activity at very low consumption of mobile phone battery.

In order to execute the project created new Wireless Network Optimization Team at the Institute of Theoretical and Applied Sciences of Polish Academy of Sciences. Its members are the project manager and 3 doctoral students, including two new employees. The OLBIN project allowed to join IITIS PAN to the COST WiNeMO (Wireless Networks of Moving Objects), in which Krzysztof Grochla serves as a member of the management committee. The project so far published 3 articles at international conferences, describing the developed mobility model and simulation of user's switching.

Results of researches made by Wireless Network Optimization Team are shown in following papers:

  1. M. Gorawski, K. Grochla, Review of Mobility Models for Performance Evaluation of Wireless Networks, Man-Machine Interactions 3, 567-577,Springer International Publishing 
  2. K. Grochla, K. Polys, Influence of the Handoff Threshold Hysteresis on Heterogeneous Wireless Network Performance, Proceedings of 7th International Working Conference HET-NETs 2013, Ilkley 2013 
  3. M. Gorawski, K. Grochla, The Real-Life Mobility Model: RLMM, Proceedings of Second International Conference on Future Generation Communication Technologies, London, 2013 
  4. K. Grochla, K. Polys, Simplified model of wireless network throughput changes resulting from client mobility, Proceedings of SIMUTools 2014, Lisbon 2014 
  5. Giovanni Giambene, Tara Ali-Yahiya, Van Anh Le, Krzysztof Grochla, Konrad Połys, Resource Management and Cell Planning in LTE Systems in book “Wireless Networking for Moving Objects: Models, Approaches, Techniques, Protocols, Architectures, Tools, Applications and Service”, Springer LNCS 8611, 2014. 
  6. Francisco Barcelo-Arroyo, Michal Gorawski, Krzysztof Grochla, Israel Martin-Escalona, Konrad Polys, Andrea G. Ribeiro, Rute Sofia, Enrica Zola: New Trends in Mobility Modelling and Handover Prediction, in book “Wireless Networking for Moving Objects: Models, Approaches, Techniques, Protocols, Architectures, Tools, Applications and Service”, Springer LNCS 8611, 2014. 
  7. K. Połys, Wpływ Wielkości Histerezy Przełączeń na Przepustowość w Sieci LTE, Studia Informatica, Vol 35, No 3 (2014) 
  8. P. Foremski, M. Gorawski, K. Grochla, Source Model of TCP Traffic in LTE Networks. In Information Sciences and Systems 2014 (pp. 125-135). Springer International Publishing 
  9. M. Słabicki, K. Grochla, The Automatic Configuration of Transmit Power in LTE Networks Based on Throughput Estimation, 33rd International Performance Computing and Communications Conference 
  10. M. Słabicki, K. Grochla, Performance Evaluation of SNMP, NETCONF and CWMP Management Protocols in Wireless Network, 4th International Conference on Electronics, Communications and Networks 
  11. K. Połys, K. Grochla, Mobility Robustness in LTE Based on Automatic Neighbor Relation Table, Computer Networks, Springer International Publishing, 2015 
  12. P. Foremski, K. Grochla, LTE or WiFi? Client-side Internet link selection for smartphones, Computer Networks, Springer International Publishing, 2015 
  13. M. Slabicki, K. Grochla, Local Approach to Power Management in LTE Networks, 38th International Conference on Telecommunications and Signal Processing (TSP), 2015 
  14. M. Gorawski, K. Grochla, K. Połys, Variability of LTE Signal in Indoor Environment, Internet in the Information Society, 10th Scientific Conference, Dabrowa Gornicza 2015 
  15. K. Grochla, K. Połys, Subcarrier Allocation for LTE Soft Frequency Reuse Based on Graph Colouring, Information Sciences and Systems 2015: 30th International Symposium on Computer and Information Sciences (ISCIS 2015), , Springer International Publishing, London 2015 
  16. M. Słabicki, K. Grochla, Influence of the Management Protocols on the LTE Self-configuration Procedures’ Performance, Information Sciences and Systems 2015: 30th International Symposium on Computer and Information Sciences (ISCIS 2015), Springer International Publishing, London 2015 
  17. P. Foremski, K. Grochla, Demo: Wireless Link Selection on Smartphone: Throughput vs Battery Drain, Proceedings of the 21st Annual International Conference on Mobile Computing and Networking (Mobicom 2015), ACM, Paris 2015 
  18. K. Grochla, M. Gorawski, K. Połys, Comparison of measurements and simulation model of indoor signal level variation in LTE networks, EAI Endorsed Transactions on Future Internet 16(9): e2. ACM, 2015 
  19. P. Foremski, M. Gorawski, K. Grochla, K. Polys. Energy-Efficient Crowdsensing of Human Mobility and Signal Levels in Cellular Networks. Sensors. 2015; 15(9):22060-22088. 
  20. K. Grochla, K. Połys, Dobór parametrów mechanizmu zwielokrotnienia wykorzystania częstotliwości SFR w sieciach LTE, Krajowe Sympozjum Telekomunikacji i Teleinformatyki (KSTiT 2015), Kraków 2015 
  21. P. Masek, J. Hosek, Y. Zakaria, D. Uhlir, V. Novotny, M. Slabicki, K. Grochla, "Experimental Evaluation of RAN Modelling in Indoor LTE Deployment," in Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT), 2015 7th International Congress on, Brno 2015 
  22. M. Slabicki, K. Grochla, "Performance Evaluation of CoAP, SNMP and NETCONF Protocols in Fog Computing Architecture", IEEE/IFIP Network Operations and Management Symposium, 2016Cytuj
  23. K. Grochla, K. Połys, "Load balancing in LTE by Tx power adjustment", 23rd International Conference, CN 2016, Brunów, Poland, June 14-17, 2016, Proceedings. Gaj P., Kwiecień A., Stera P. (Eds.). CCIS Vol. 608, pp. 216-225, 2016 
  24. P. Masek, M. Slabicki, J. Hosek, K. Grochla, Transmission Power Optimization in Live 3GPP LTE-A Indoor Deployment, in Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT), 2016 6th International Congress on, Lisbon 2016