DSpace DSpace UPC
 Català   Castellano   English  

E-prints UPC >
Altres >
Enviament des de DRAC >

Empreu aquest identificador per citar o enllaçar aquest ítem: http://hdl.handle.net/2117/13193

Ítem no disponible en accés obert per política de l'editorial

Arxiu Descripció MidaFormat
Performance evaluation of radio access selection strategies in....pdf1,56 MBAdobe PDF Accés restringit

Citació: Gelabert, X. [et al.]. Performance evaluation of radio access selection strategies in constrained multi-access/multi-service wireless networks. "Computer networks", 07 Gener 2011, vol. 55, núm. 1, p. 173-192.
Títol: Performance evaluation of radio access selection strategies in constrained multi-access/multi-service wireless networks
Autor: Gelabert Doran, Xavier Bernardi Veure Producció científica UPC; Sallent Roig, José Oriol Veure Producció científica UPC; Pérez Romero, Jordi Veure Producció científica UPC; Agustí Comes, Ramon Veure Producció científica UPC
Data: 7-gen-2011
Tipus de document: Article
Resum: The benefits of jointly managing the combined set of radio resources offered by heterogeneous networks consisting of several radio access technologies (RATs) have been profusely studied and assessed in recent years. This notion has been coined as common radio resource management (CRRM). Nevertheless, most of the existing work assumes scenarios where all RATs are accessible (provided the RAT is not at full capacity) to those users demanding a particular service. If this is so, the obtained benefits become rather optimistic given that we neglect the fact that the deployed RATs may have different coverage overlapping conditions among them and that users may not have terminals that support all RATs (i.e. multimode terminals). In this paper we extend a previously developed Markov framework in order to capture the effect of having different coverage overlapping conditions along with the capability of certain terminals to support all or a subset of available RATs. Probabilistic models are obtained for the characterization of a wide range of coverage and terminal heterogeneity scenarios. Extensive performance evaluation is carried out in order to identify those parameters influencing the suitability of a particular initial RAT selection strategy, that is, to choose the most suitable RAT at call/session initiation among those accessible. Results indicate that suitable RAT selection is tightly dependent on: the ratio between the different offered traffic loads (or service-mix), the contention (if any) for radio resources by different services in particular RATs, and the identification of access-constrained RATs due to lack of coverage and/or terminal capability. In this paper we provide specific guidelines and rules concerning resource allocation for the utmost utilization of radio resources, in terms of Erlang capacity, and enhanced perceived quality by the users, in terms of achievable throughput.
ISSN: 1389-1286
URI: http://hdl.handle.net/2117/13193
DOI: 10.1016/j.comnet.2010.08.009
Apareix a les col·leccions:Altres. Enviament des de DRAC
GRCM - Radio Communication Research Group. Articles de revista
Departament de Teoria del Senyal i Comunicacions. Articles de revista
Comparteix:


Stats Mostra les estadístiques d'aquest ítem

SFX Query

Tots els drets reservats. Aquesta obra està protegida pels drets de propietat intel·lectual i industrial corresponents. Sense perjudici de les exempcions legals existents, queda prohibida la seva reproducció, distribució, comunicació pública o transformació sense l'autorització del titular dels drets.

Per a qualsevol ús que se'n vulgui fer no previst a la llei, dirigiu-vos a: sepi.bupc@upc.edu

 

Valid XHTML 1.0! Programari DSpace Copyright © 2002-2004 MIT and Hewlett-Packard Comentaris
Universitat Politècnica de Catalunya. Servei de Biblioteques, Publicacions i Arxius