On Managing Multiple Radio Access Congestion Events in B3G Scenarios
Gelabert, X.
Perez-Romero, J.
Sallent, O.
Agusti, R.
Dept. Signal Theory & Commun., Univ. Politecnica de Catalunya, Barcelona;
This paper appears in: Vehicular Technology Conference, 2007. VTC2007-Spring. IEEE 65th
Publication Date: 22-25 April 2007
On page(s): 1137-1141
Location: Dublin,
ISSN: 1550-2252
ISBN: 1-4244-0266-2
INSPEC Accession Number: 9517627
Digital Object Identifier: 10.1109/VETECS.2007.241
Current Version Published: 2007-05-29
Abstract
Among the common radio resource management (CRRM) functions that are responsible for the proper allocation of resources in a multi-access network, congestion control is the one devoted to overcome potential QoS failures due to the inherent dynamics of the network. In this paper we address the problem of congestion control in a scenario considering the GSM/EDGE radio access network (GERAN) and the UMTS terrestrial radio access network (UTRAN). In particular, we face the problem where the two available radio access technologies (RATs) undergo simultaneous congestion situations. For this case, a congestion resolution scheme based on vertical (inter-system) handover (VHO) jointly with a bit-rate reduction (BRR) scheme is proposed and evaluated for a mixed services scenario considering voice and data users.
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