622 research outputs found

    Bankruptcy-based Radio Resource Management for Multimedia Mobile Networks

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    The transmission of bandwidth demanding multimedia applications in capacity constrained mobile radio networks requires optimizing the usage and assignment of radio resources following the varying Quality of Service (QoS) requirements characteristics of multimedia traffic environments. Considering the capacity of bankruptcy theory to deal with situations where the demand for resources is higher than its availability, this work proposes the application of bankruptcy theories to design efficient radio resource management policies that provide the highest possible QoS levels while guaranteeing user fairnes

    Wireless communications in the new millennium and third generation wireless networks

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    At the end of the 20 century, and at the beginning of this one, wireless communications are making large advances. The new technologies are on the way to provide a high-speed, high-quality information exchange between handheld terminals, and information repositories. The so called 2,5 generation networks, using the techniques like the HSCSD1, GPRS2, EDGE3, and the 3r generation wireless systems will help the wireless world to reach those goals. In this thesis I will start from the first and second-generation wireless networks, and then look into the 2,5 generation and 3rd generation wireless communications more in detail. The latest advances in the wireless world are the main focus of this paper although a short history of wireless communications is also given. The various aspects related to 3rd generation systems will be explored in this thesis, for example the air interface discussions, its time scale, its elements like the mobile equipment, software and security, USLM4, services that will be offered, etc. In addition, the technical factors and key technologies that are likely to shape the wireless network environment of the future will be explored. This part is expected to help us to see beyond the 3rd generation
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