Multimedia and real-time applications require bandwidth guarantees, which may be achieved by resource reservation. Several researches were done to propose efficient reservation MAC protocols for ad-hoc networks. In these schemes, channel is segmented into super-frames composed of fixed number of slots. They allocate slots to each traffic source, and make sure that neighbor nodes record the rese...

Fuzzy system modeling approximates highly nonlinear systems by means of fuzzy if-then rules. In the literature, different approaches are proposed for mining fuzzy if-then rules from historical data. These approaches usually utilize fuzzy clustering in structure identification phase. In this research, we are going to analyze three possible approaches from the literature and try to compare their ...

This chapter is about alternative MAC solutions for VANETs, based on a synchronous, slotted philosophy. After highlighting the limitation of the incumbent CSMA/CA solution, the chapter explains the rationale for a slotted standard and briefly introduces the three solutions found in literature (namely MS-Aloha, D-TDMA and STDMA). In particular, one of them, MS-Aloha, seems particularly rich in f...

Predicting student success has long been an interest of institutions of higher education as well as organisations responsible for preparing high-stake, standardised tests administered at national and international levels. This study discusses how performance prediction studies have evolved from those that use demographic data and high school grades to predict success in college to those that ut...

The research on open source software has attracted a great deal of attention during the past decades for its wide applications in both academia and industry. Among the research topics related to open source software, the usefulness of software network metrics for fault prediction has been received much attention recently. In order to verify the importance of software network metrics in the perf...

In this paper we propose a consistent and asymptotically normal estimator (CAN) for intensity parameters ρ1 & ρ2 for a queueing network with distribution-free inter-arrival and service times. Using this estimator and its estimated variance, a 100(1− α)% asymptotic confidence interval for intensities is constructed. Variance-stabilized bootstrap-t, Bayesian bootstrap, Percentile bootstrap are al...

Many skeletonization algorithms have been analysed from several points of view in the past ten years to compare the results they produce. Our attempt here is to add a new comparative analysis to this research area which investigates the noise sensitivity of these algorithms. We examined the performances of five algorithms (they are based on different thinning models) on a huge picture set, and ...

Wireless sensor networks consists of small nodes with sensing, computation, and wireless communications capabilities. The life time of a sensor node depends on its energy consumption. Saving energy and increase network life time are main challenges of wireless sensor networks. The efficiency of the sensor node depends on the routing protocols used. Routing protocols provides a best data transmi...

Computer hardware capabilities have dramatically increased over the past ten years in terms of processing power and graphic capability. Costs have decreased to the point where educational institutions can now afford to buy such systems. Unfortunately, research exploring methods to aid educators in incorporating computer technology into the design curriculum has not kept up at the same rate. Thi...

For Romania, the fulfilment of the obligations undertaken as a member state of the European Union in accordance with the Treaty of Accession requires the effective implementation of sustainable development principles and practices, this being the only reasonable development option, which adequately draws in on the economic, social and environment resources. Achieving this objective is based on ...