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Context-aware and customization services are expected in the forthcoming ubiquitous computing environment. In order to make SOA provide context-aware services, we propose a SOA-extended architecture, which integrates a Context-aware Decision Making system that can evaluate services for mediating dynamic service composition and reconfiguration according to the context information. In the Context-aware...
Web Services are emerging technologies that enable application to application communication and reuse of autonomous services over Web. Composition of web services is a concept of integrating individual web services to conduct complex business transactions based on functionality and performance constraintsTo satisfy user requirements, technologies of Quality of service (QoS)-based web service composition...
Web Services are emerging technologies that enable application to application communication and reuse of autonomous services over Web. Composition of web services is a concept of integrating individual web services to conduct complex business transactions based on functionality and performance constraints. To simplify composite web service development, technologies of quality of service (QoS) based...
In this paper, we proposed a Ka band Wimax multi-satellites system. An essential feature of this scheme is that power assignment mechanism, the direct mapping strategy, unequal error protection scheme, and unequal level modulation are allocated to the information transmission that requires unequal bit error rate (BER). Simulation results show that the proposed scheme can not only fulfill the quality...
In this paper, we present a power assignment mechanism which is suitable for orthogonal frequency division multiplexing (OFDM)-based underwater acoustic communication system. An essential feature of this scheme is that higher power is allocated to the information that requires higher quality of service. To achieve the purpose of maximum resource utilization, or minimum total transmission power, we...
In this paper, we propose an orthogonal variable spreading factor (OVSF) based underwater wireless multimedia (UWM) system. An essential feature of this system is power assignment mechanism, direct mapping (DM) strategy, OVSF technology, unequal error protection schemes, and adaptive modulation are granted to messages that can tolerate high bit error rate (BER). Simulation results show that the proposed...
In this paper, we propose a Ka band wideband code division multiple access (WCDMA) based low earth orbit (LEO) multi-satellites mobile medicine system. An essential feature of this system is that high power, the STBC strategy, more capable error protection schemes, and low level modulation are allocated to the medical information that requires higher quality of service (QoS). In contrast, low power,...
In this paper, we present an DS UWB wireless medical system with transmission power assignment mechanism. An essential feature of this system is that higher power is allocated to the medical information that requires higher quality of service. To achieve the purpose of maximum resource utilization, or minimum total transmission power, we also incorporate a orthogonal variable spreading factor codes...
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