Abstract
Heterogeneous wireless systems are characterized by the physical coexistence of a variety of radio access technologies with different, but also complementary, technical characteristics and performance. A key aspect of heterogeneous systems is then the implementation of efficient joint radio resource management mechanisms. In this context, this paper presents and evaluates novel joint radio resource management techniques based on the CEA bankruptcy distribution rule. The proposed policies base their distribution decisions on the system conditions and the varying quality of service requirements present in multimedia scenarios. The obtained results demonstrate that the proposed policies can efficiently distribute the radio resources with a low computational cost.
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Notes
Vertical handovers can increase the user-perceived throughput, but also incur in an additional delay and overhead that must be carefully controlled, in particular for delay sensitive real-time services.
Users are checked from highest to lowest priority.
In a centralized architecture, the JRRM entity might be placed in a stand-alone node or in an existing node of the radio access network of any RAT. The implemented JRRM techniques could also operate under the 3GPP JRRM distributed architecture given the limited amount of information they require to be exchanged among different RATs (number of active users and their requested services).
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Acknowledgments
This work has been supported by the Ministry of Education and Science (Spain) and FEDER funds under the project TEC2008-06728 and MTM2008-06778-C02-01, by the Generalitat Valenciana under the projects ACOMP/2010/111 and ACOMP/2011/129, and by the Ministry of Industry, Tourism and Trade (Spain) under the project TSI-020400-2008-113 (CELTIC proposal CP5-013).
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Gozalvez, J., Lucas-Estañ, M.C. & Sanchez-Soriano, J. Joint radio resource management for heterogeneous wireless systems. Wireless Netw 18, 443–455 (2012). https://doi.org/10.1007/s11276-011-0410-3
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DOI: https://doi.org/10.1007/s11276-011-0410-3