43 Papers
279 Citations
Esa Piri is an academic researcher from VTT Technical Research Centre of Finland. The author has contributed to research in topics: Quality of service & WiMAX. The author has an hindex of 10, co-authored 41 publications. Previous affiliations of Esa Piri include University of Aveiro & Portugal Telecom.
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Papers
5GTN: A test network for 5G application development and testing
Esa Piri,Pekka Ruuska,Teemu Kanstren,Jukka Makela,Jari Korva,Atso Hekkala,Ari Pouttu,Olli Liinamaa,Matti Latva-aho,Kari Vierimaa,Harri Valasma +10 more
- 27 Jun 2016
TL;DR: This paper presents a 5G test network, which is developed and deployed in Oulu, Finland, together with a number of different partners closely involved in the development and specification of the 5G technology.
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Empirical evaluation of VoIP aggregation over a fixed WiMAX testbed
Kostas Pentikousis,Esa Piri,Jarno Pinola,Frerk Fitzek,T. Nissila,Ilkka Harjula +5 more
- 18 Mar 2008
TL;DR: This study evaluates voice over IP (VoIP) performance over a fixed WiMAX testbed and quantify the benefits from employing applicationand network-level aggregation, and finds application-layer aggregation appears to be the best scheme.
An experimental investigation of VoIP and video streaming over fixed WiMAX
Kostas Pentikousis,Jarno Pinola,Esa Piri,Frank H. P. Fitzek +3 more
- 01 Apr 2008
TL;DR: This paper employs multiple competing traffic sources over a point-to-multipoint WiMAX topology and measures the capacity of the WiMAX equipment to handle a multitude of VoIP flows between subscriber stations while delivering a variable number of video streams.
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Dynamic Cross-Layer Adaptation of Scalable Video in Wireless Networking
Esa Piri,Mikko Uitto,Janne Vehkaperä,Tiia Sutinen +3 more
- 01 Dec 2010
TL;DR: This study exploits an extensive cross-layer signaling framework for a dynamic scalable video adaptation in varying network capacity by comparing a fast and fair MAC-layer packet scheduling with a relatively slow and long-term adaptivity taken place already at the application layer using a real H.264/SVC video.
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Cross-layer architecture for adaptive real-time multimedia in heterogeneous network environment
Esa Piri,Tiia Sutinen,Janne Vehkaperä +2 more
- 17 May 2009
TL;DR: This study introduces an information service architecture for adaptive multimedia which enables to collect and disseminate events and information from the different layers of the protocol stack locally and also between network entities regardless of their location in the network.
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