In this paper, we study multicast protocols for Mobile Ad-Hoc Networks, and specifically OLSR networks. We describe and compare three multicast protocols, namely MOST (Multicast Overlay Spanning Tree), MOLSR (Multicast OLSR) and SMOLSR (Simple Multicast OLSR), with different approaches and properties with respect to scalability. Our approach is simulation-based: through different scenarios and ...

Emerging airborne telemetry networks present several challenges such that traditional MANET protocols do not perform well. On the other hand, application traffic characteristics are expected to be identical in this domain. Transactional application traffic performance has been studied for traditional MANETs, however this type of traffic has not been studied for domain-specific MANET scenarios. ...

The Motorway Surveillance System (MSS) is one of the most important technologies used to collect information about road conditions and then provide that collected information to motorway users. The routing in networks used by these systems is a critical task due to the highly dynamic environments. This paper presents performance evaluations, comparisons, and analysis for three routing protocols...

The development of a Wireless Sensor Network (WSN) gateway is challenging for countries where limited infrastructures lead to frequent power shortages and network unreliability. In this paper we describe the design of a flexible gateway that collects data from WSN, stores them in a database and makes them available via wireless links. In the design of such device, low power, low-cost and flexib...

synthesis, characterization, spectral and theoretical calculations of sodium tetrafluoroborate (iii) (stfb) has been studied in this research. sodium tetrafluoroborate (iii) was synthesized by a sonochemical method and characterized by ir, uv/vis, 11b-nmr and mass spectrometer techniques. the nano compound was characterized by scanning electron microscopy (sem), x-ray powder diffraction (xrd) a...

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introduction: the endemic occurrence of new strains of tuberculosis around the globe has initiated new research on developing diagnostic radiopharmaceutical based on antibiotics. methods:tc-99m labeled streptomycin was prepared using freshly milked 99mtco4- and various concentrations of streptomycin, stannous chloride at various temperatures in high yield radiochemical purity shown by hplc/rtlc...

In the present study, the aim is to optimize full and half toroidal continuously variable transmission (CVT) in order to minimize the vehicle fuel consumption (FC) in ECE driving cycle. First, the model of both CVTs’ efficiency is presented. The control strategy of CVTs speed ratio based on minimizing the vehicle FC is introduced, and the algorithm of calculating the vehicle FC is shown. Afterw...