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The next generation of wireless systems (NGWS) will allow the integration of multiple radio access technologies (RATs). This integration will enable that much functionalities that were specific to each RAT to be jointly processed, increasing the cooperation degree. This work focuses on radio resource management (RRM) for NGWS, where a new RRM architecture is introduced. In this architecture, the RRM...
Next generation mobile radio networks of IMT Advanced systems family will offer ubiquitous broadband high area coverage, at up to 1 GBit/s in cities and 100 MBit/s in rural areas and QoS support in terms of throughput and low delay. Candidate technologies like 3GPP-LTE, WiMAX, as well as the WINNER system design are based on OFDMA transmission for flexible radio resource allocation, scalable and adaptable...
Employing multiple radio access technologies such as WiMAX, HSDPA and Wi-Fi in a mobile network to provide users with more cost-effective communication services has long been a vision of many service network providers. In this paper, we propose a novel user-decided service model for a cooperative wireless network in which the radio resources of multiple wireless networks are collectively managed....
A dramatic challenge of the remote, rural, and difficult for access (RRD) areas is the critical discrepancy of the modern 3G/4G communications centralized architecture with respect to the fully distributed topology of the RRD data streams. In this paper, we systematize the fundamental principles of the new QoS-aware radically distributed (grid-like) multifunctional multiple access control to long-delay...
Communication networks beyond 3G will see the interconnection of heterogeneous radio access networks in order to always provide the best quality of service in the most efficient way to users with multi-mode terminals. This scenario poses a number of critical issues, which have to be faced in order to get the best from the integrated network. In this paper we investigate the issue of parallel transmission...
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