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To provide high speed connections for a large numbers of users in moving vehicles, a new broadband mobile network should be considered to go on the research to complement the lack of high data rate support from the existing 3G. Following this trend, authors introduce a design of a broadband microcellular network MM-MAN (mobile multimedia metropolitan area network) that can offer mobile users in a...
The explosive demands of multimedia services have been grown up to support delay-sensitive applications, e.g., VoIP and streaming using codec. When a mobile node (MN) moves across different types of networks, the codec should be effectively adapted according to the significant change of network condition, i.e., throughput and delay. Therefore, in this paper, we propose a codec adaptation for vertical...
WiBro (Mobile WiMAX) is a broadband wireless internet service supporting for fixed, portable and mobile users, but enhancement of service quality in indoor environment is still necessary. WiBro femtocell is developed to expand cell coverage, increase system capacity and offer various multimedia service with high throughput in indoor environment. Three types of femtocell are designed according to the...
Providing multimedia services in wireless networks requires maximizing the system throughput without sacrificing fairness. Previous works focus on system capacity optimization but fail to jointly ensure adequate fairness. This paper proposes a new MAC scheduling scheme which dynamically takes in consideration the QoS experienced by the mobiles and the transmission conditions in an extended cross-layer...
The deployment of third generation (3G) technologies is constantly growing, offering higher wireless capacity which promises broader access to IP applications including rich multimedia content. The deployment of such applications primarily requires the identification of performance characteristics offered by the underlying 3G network. In this paper, the results of a series of experiments aiming to...
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