Measurement Techniques for Wireless Networks
Network measurements have been in use since the early days of the Internet. However it was not until the late 90’s when the topic started gaining momentum within the research community. Nowadays this research field is gaining maturity with an important number of models, techniques and tools being used widespread. However, networks are continuously evolving and demand continuous research on novel measurement tools and techniques that can help network protocols, applications and users to understand and adapt to these changes.
We mainly focus our research in two particular directions. On one side we are researching on extending advances on network measurements to wireless networks, with the challenges that this process entails. On the other side we are working on studying appropriate methods to use network measurement advances in order to improve the performance of network applications and protocols.
During the last years there has been an important effort from the research community to progressively adapt network measurement tools to take into account the particularities of wireless networks. Research results have shown that the network models used to design traditional (wired) measurement tools do not hold in the presence of wireless networks. As a result novel models and tools have emerged that are being applied in wireless networking scenarios. However, the wireless networking scenarios present a high level of complexity that demands further and deeper research on the matter. Besides, network measurement techniques are progressively fed back into network applications in order to improve their performance, both in wired, wireless and hybrid networks. However, despite the important research advances achieved during the last decade, network protocols and applications do not fully exploit them yet.
Network measurement largely benefit from the advances on queueing modeling. We complement this with extensive simulation and experimentation results that are used to accurately validate the results.
Marc Portoles-Comeras, Albert Cabellos-Aparicio, Josep Mangues-Bafalluy, Albert Banchs, Jordi Domingo-Pascual, Impact of transient CSMA/CA access delays on Active Bandwidth Measurements, in Proceedings of the 9th ACM SIGCOMM conference on Internet Measurement Conference (IMC 2009), 4-6 November 2009, Chicago, Illinois (USA).
Marc Portoles-Comeras, Christian Ibars, José Núñez-Martínez, Josep Mangues-Bafalluy, Characterizing WLAN medium utilization for Radio Environment Maps, in Proceedings of the IEEE 74th Vehicular Technology Conference (VTC2011-fall), 5-8 September 2011, San Francisco, C (United States).
José Núñez-Martínez, Marc Portoles-Comeras, Albert Cabellos-Aparicio, Daniel López-Rovira, Josep Mangues-Bafalluy, Jordi Domingo-Pascual, An Experimental Evaluation of Packet-Level Measurements of Hidden Traffic Load, in Proceedings of 8th International Conference on Wired/Wireless Internet Communications (WWIC 2010), 1-3 June, 2010, Lulea (Sweden).
José Núñez-Martínez, Marc Portolés-Comeras, Albert Cabellos-Aparicio, Josep Mangues-Bafalluy, Jordi Domingo-Pascual, Practical design constraints for measuring utilization in hybrid paths using delay measurements, in Proceedings of 6h International workshop on Wireless Network Measurements (WiNMee 2010), 31 May 2010, Avignon (France).
Marc Portoles-Comeras, Josep Mangues-Bafalluy, Manuel Requena-Esteso, Techniques for Improving the Accuracy of 802.11 WLAN-Based Networking Experimentation, EURASIP Journal on Wireless Communications and Networking, Vol. 2010, pp. 2, February 2010.
Marc Portoles-Comeras, Andrey Krendzel, Josep Mangues-Bafalluy, Methodology to characterize the performance of IEEE 802.11 nodes to be deployed in multi-hop environments, in proceedings of the WinMee 2007, Limassol, Cyprus, April 20, 2007
Marc Portoles-Comeras, Manuel Requena-Esteso, Josep Mangues-Bafalluy, Marc Cardenete-Suriol, Monitoring wireless networks: performance assessment of sniffer architectures, in Proc. of the IEEE International Conference on Communications (ICC 2006). Istanbul (Turkey). June 11-15, 2006.
Marc Portoles-Comeras, Josep Mangues-Bafalluy, Manuel Requena-Esteso, Multi-radio based active and passive wireless network measurements, Proceedings of WinMee 2006. Boston (USA). April 3, 2006.