realistic mobility models can demonstrate more precise evaluation results because their parameters are closer to the reality. in this paper a realistic fuzzy mobility model has been proposed. this model has rules which are changeable depending on nodes and environmental conditions. it seems that this model is more complete than other mobility models.after simulation, it was found out that not o...

This paper discusses the role of ad hoc networking in future wireless communications. Ad hoc networks are'classified as isolated ad hoc networks with large and small sizes, integrated ad hoc networks in various scenarios and cellular ad hoc networks for the future mobile access networks. The very low traffic performance of large scale ad hoc networks is shown by simulation results, indicating s...

OBJECTIVES Our aim was to compare longer-term outcomes for ad hoc percutaneous coronary intervention (PCI) and non-ad hoc PCI. BACKGROUND Ad hoc PCIs, whereby PCI is performed immediately after cardiac catheterization, has become the most common way of performing PCI. However, no studies have compared longer-term outcomes for ad hoc and non-ad hoc PCIs. METHODS A total of 46,565 New York St...

due to limitations in computing resources of mobile nodes, mobile ad-hoc networks (manets) are very fault-prone. so far, redundancy at different levels of the network has been considered an efficient strategy to enhance the fault-tolerance of networks. indeed, ad-hoc networks are extremely redundant; therefore, natural redundancy to fault tolerance enhancement has a great impact on the network ...

in mobile ad hoc networks, the absence ofinfrastructure and the consequent absence of authorizationfacilities impede the usual practice of establishing a practicalcriterion to distinguishing nodes as trusted and distrusted.since all nodes in the manets would be used as router inmulti-hop applications, secure routing protocols have vital rulein the security of the network. so evaluating the perf...