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The FCC's ruling for white-space (WS) spectrum utilization has raised the popularity of database-assisted dynamic spectrum access (DSA). However, how to dynamically share the WS spectrum overcoming the spectrum property of time-frequency variance while considering the quality of service (QoS) requirements of secondary users (SUs) still remains challenging. To this end, we propose a dynamic spectrum...
Currently Internet of Things (IoT) and multimedia technologies have entered the healthcare field through ambient aiding living and telemedicine. However there are still several obstacles blocking in the way, the toughest ones among which are IoT interoperability, system security, streaming Quality of Service (QoS) and dynamic increasing storage. The major contribution of this paper is proposing an...
This paper investigates how to integrate multi-modal features for story boundary detection in broadcast news. The detection problem is formulated as a classification task, i.e., classifying each candidate into boundary/non-boundary based on a set of features. We use a diverse collection of features from text, audio and video modalities: lexical features capturing the semantic shifts of news topics...
Due to spectrum scarcity and emerging various wireless applications in IMT-Advanced system, spectrum allocation scheme becomes a recently critical issue. In this paper, we refer to the concepts of spectrum reservation and power reward, make use of maximum-minimum criteria, propose a cellbased distributed dynamic spectrum allocation (DSA) algorithm which combines the water filling power allocation...
With the rapid development of computer network, multimedia technology for e-education is widely applied in everywhere. In this paper, we analyze the multimedia technology, discuss the applications of multimedia technology in e-learning education. Multimedia system offers operators the opportunity to build an open IP based optical network infrastructure that will enable an easy deployment of new rich...
Nowadays, multimedia technology is widely applied in everywhere. With increasing availability of spatial data, there is an urgent need to develop way and means for providing easy accessibility and promote spatial data sharing. In this paper, we analyze the multimedia application, discuss the multimedia technology in video and audio. Multimedia system offers operators the opportunity to build an open...
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