In this paper, we present an efficient downlink resource allocation algorithm with rate requirement consideration in multicarrier-based cognitive radio (CR) networks. The algorithm is divided into two steps aiming to maximize the downlink capacity of the network under the total power, the interference introduced to the primary users (PUs) and the transmission rate of the secondary users (SUs) c...

A Smart Grid (SG) facilitates bidirectional demand-response communication between individual users and power providers with high computation and communication performance but also brings about the risk of leaking users' private information. Therefore, improving the individual power requirement and distribution efficiency to ensure communication reliability while preserving user privacy is a new...

Understanding user requirement is an integral part of information system design and is critical to the success of interactive systems. It is now widely understood that successful systems and products begin with a clear understanding the domain of the system, and needs and requirements of the users. There are several purposes for modeling and analyzing the problem domain before starting the soft...

this paper surveys parallel scheduling problems and metrics correlated to and then applys metrics to make decision in comparison to other policy schedulers. parallel processing is new trend in computer science especially in embedded and multicore systems whereas needs more power consumption to reach speed up. the qos requirement for users is to have good responsiveness and for service providers...

Since the lack of a specific design method, guidance and user participation in product innovation digital twins, process requirement-driven twin combined with flow function analysis is proposed based on constructed model PPE-PVE-VVE-VPE twin. First, to obtain orientation design, requirement knowledge graph generated basis functional decomposition intuitively express mapping relationship between...

In present scenario, with the unprecedented development of electronics and tremendous growth of the Internet, World Wide Web (WWW) has become common and popular source of information for varied category of users. Web search engines provide interface between users and web to extract the desired information from WWW. The user possess query to search engine and in response the search engine return...

This paper addresses the issue of achieving energy efficiency in heterogeneous cellular networks (HetNets). The use of sleep control strategy and distance based energy requirement enables us to achieve optimized energy efficiency. The proposed system connects to the problem of heterogeneity and finds solution to the balance in terms of communication distance based energy requirement, the networ...

Users prefer natural language software requirements because of their usability and accessibility. When they describe their wishes for software development, they often provide off-topic information. We therefore present REaCT1, an automated approach for identifying and semantically annotating the on-topic parts of requirement descriptions. It is designed to support requirement engineers in the e...

The interplaying roles among the user groups must be adequately-mapped to fulfil the design needs of Egovernment applications. In previous studies, the design of citizen-centric e-government and its theoretical understanding is still limited in relation to the requirement of engaging malleable features for supporting all relevant users’ roles in governing bodies. Operationalising IS theories to...