http://hdl.handle.net/2117/5508 Wed, 19 Jun 2013 06:48:26 GMT 2013-06-19T06:48:26Z webmaster.bupc@upc.edu Universitat Politècnica de Catalunya. Servei de Biblioteques i Documentació no http://hdl.handle.net/2117/14819 Title: Middleware for positioning in cellular networks Authors: Martín Escalona, Israel; Barceló Arroyo, Francisco; Ciurana Adell, Marc Wed, 25 Jan 2012 19:30:34 GMT http://hdl.handle.net/2117/14819 2012-01-25T19:30:34Z Martín Escalona, Israel; Barceló Arroyo, Francisco; Ciurana Adell, Marc no http://hdl.handle.net/2117/12651 Title: Problems in dynamic bandwidth allocation in connection oriented networks Authors: Hesselbach Serra, Xavier Wed, 25 May 2011 14:58:36 GMT http://hdl.handle.net/2117/12651 2011-05-25T14:58:36Z Hesselbach Serra, Xavier no http://hdl.handle.net/2117/11632 Title: Chapter 4: Mobility Support Authors: Barceló Arroyo, Francisco; Aguayo-Torres, M.C.; Al Begain, K.; Martín Escalona, Israel; Vassilou, V. Abstract: Wireless access allows independency between the user’s position and the physical bearer used to access services from the network. However, this independency does not imply that wireless networks show a full ability to cope with any degree of mobility. This is because other constraints can limit the mobility when accessing the network. The main constraints are registration and addressing (e.g., of user, terminal, application) and handover. In general, procedures needed to cope with those issues have a cost in terms of quality degradation, need for more resources, or both; this is known as mobility cost. Performance evaluation of mobility related issues in wireless networks requires a precise knowledge and understanding of the way in which terminals move, the impact of the movement on performance and quality, and the procedures and resources allocated in the network to minimize the impact of the mobility. Wed, 02 Mar 2011 19:27:29 GMT http://hdl.handle.net/2117/11632 2011-03-02T19:27:29Z Barceló Arroyo, Francisco; Aguayo-Torres, M.C.; Al Begain, K.; Martín Escalona, Israel; Vassilou, V. no Wireless access allows independency between the user’s position and the physical bearer used to access services from the network. However, this independency does not imply that wireless networks show a full ability to cope with any degree of mobility. This is because other constraints can limit the mobility when accessing the network. The main constraints are registration and addressing (e.g., of user, terminal, application) and handover. In general, procedures needed to cope with those issues have a cost in terms of quality degradation, need for more resources, or both; this is known as mobility cost. Performance evaluation of mobility related issues in wireless networks requires a precise knowledge and understanding of the way in which terminals move, the impact of the movement on performance and quality, and the procedures and resources allocated in the network to minimize the impact of the mobility. http://hdl.handle.net/2117/10201 Title: Discrete event simulation of wireless cellular networks Authors: Zola, Enrica Valeria; Martín Escalona, Israel; Barceló Arroyo, Francisco Tue, 09 Nov 2010 12:38:30 GMT http://hdl.handle.net/2117/10201 2010-11-09T12:38:30Z Zola, Enrica Valeria; Martín Escalona, Israel; Barceló Arroyo, Francisco no http://hdl.handle.net/2117/10076 Title: Genetic algorithms for designing network security protocols Authors: Zarza, Luis; Forné Muñoz, Jorge; Pegueroles Vallés, Josep R.; Soriano Ibáñez, Miguel Abstract: The design of cryptographic and security protocols for new scenarios and applications can be computationally expensive. Examples of these can be sensor or mobile ad-hoc networks where thousands of nodes can be involved. In such cases, the aid of an automated tool generating protocols for a predefined problem can be of great utility. This work uses the genetic algorithms (GA) techniques for the automatic design of security networked protocols. When using GA for optimizing protocols two aspects are critical: the genome definition and the evaluation function. We discuss how security protocols can be represented as binary strings and can be interpreted as security protocols; moreover we define several basic criteria for evaluating security protocols. Finally, we present the software we developed for generating secure communications protocols and show some examples and obtained results. Tue, 02 Nov 2010 13:07:28 GMT http://hdl.handle.net/2117/10076 2010-11-02T13:07:28Z Zarza, Luis; Forné Muñoz, Jorge; Pegueroles Vallés, Josep R.; Soriano Ibáñez, Miguel no The design of cryptographic and security protocols for new scenarios and applications can be computationally expensive. Examples of these can be sensor or mobile ad-hoc networks where thousands of nodes can be involved. In such cases, the aid of an automated tool generating protocols for a predefined problem can be of great utility. This work uses the genetic algorithms (GA) techniques for the automatic design of security networked protocols. When using GA for optimizing protocols two aspects are critical: the genome definition and the evaluation function. We discuss how security protocols can be represented as binary strings and can be interpreted as security protocols; moreover we define several basic criteria for evaluating security protocols. Finally, we present the software we developed for generating secure communications protocols and show some examples and obtained results. http://hdl.handle.net/2117/7971 Title: Next Generation Optical Access Networks: from TDM to WDM Authors: Gutiérrez González, Lluís; Garfias Hernandez, Paola; Andrade Jardín, Marilet de; Cervelló Pastor, Cristina; Sallent Ribes, Sebastián Fri, 02 Jul 2010 09:34:04 GMT http://hdl.handle.net/2117/7971 2010-07-02T09:34:04Z Gutiérrez González, Lluís; Garfias Hernandez, Paola; Andrade Jardín, Marilet de; Cervelló Pastor, Cristina; Sallent Ribes, Sebastián no