This paper studies the behavior of performance evaluation for a personal communication services (PCS) network, in which the calls' arrival process may depend on the number of calls in the target cells. Each cell of the PCS network consists of a ®nite channel and a buffer (with ®nite or in®nite size) for handoff calls. The handoff calls having to wait in the buffer for further communication may ...

Personal cloud storage services have attracted the attention of users thanks to this great accessibility. Personal cloud storage services allow users to synchronize their local files with the servers in the cloud in order to make them accessible from anywhere, on any device, and at any time thanks to the client applications provided by the vendors. Various experiments are evaluated on Dropbox, ...

In this paper we consider the uplink transmission in MCCDMA systems (MultiCarrier Coded Division Multiple Access). To reduce the envelope fluctuations of the transmitted signals, the MC-CDMA signal associated to each MT (Mobile Terminal) is submitted to a clipping device,followed by a frequency-domain filtering operation. We define an iterative receiver that jointly performs the MUD (MultiUser ...

Learner construction of their understanding is one of the basic tenets of a constructivist framework of learning. Technology-supported learning environments have been developed to support construction and allow students to employ resources to express their ideas and arguments. A new product, StageStruck, has been developed to extend the process of knowledge construction to knowledge domains in ...

one of the actions needed to be taken towards the growth and expansion of entrepreneurship is to provide grounds for creation of entrepreneurial culture in a community. entrepreneurial culture is a collection of values, attitudes, norms, and behaviors   which form the identities of entrepreneurs. the principal objective of this research is to investigate the effect of entrepreneurial attitude o...

This study extends previous research on the relations among students' personal achievement goals, perceptions of the classroom goal structure, and reports of the use of self-handicapping strategies. Surveys, specific to the math domain, were given to 484 7th-grade students in nine middle schools. Personal performance-avoid goals positively predicted handicapping, whereas personal performance-ap...

the purpose of this research was to study the effects of four personal and social variables including the age, literacy, job experience and size of herd on different variables such as implementing of managerial strategies in transition period, relevant costs of these strategies, average production per head and gross income of milk sale per head. for this purpose all required information were co...