This paper presents a novel approach to integrate Wireless Local Area Networks (WLANs) and Mobile Ad-hoc Networks (MANETs) to the Internet Protocol version 6 (IPv6) based Internet. In the proposed network architecture, the mobiles, connected as a MANET, employ the Optimized Link State Routing (OLSR) protocol for routing within the MANET. Gateways are used to connect MANETs to the Internet. This...

We report on an effort to use executable modeling languages for developing software for the Ericsson LTE-A uplink test bed. The test bed was a part of a 4G telecommunications system, that was presented at the Mobile World Congress in Barcelona, February 2011. The requirements for the delivered software included efficient real-time performance for signal processing on new hardware as well as a f...

We propose a two-phase model having a Newtonian rheology for the fluid phase and friction for the particle phase to describe bed-load transport in laminar pipe flows. This model is able to provide a description of the flow of the mobile granular layer. When the flow is not significantly perturbed, simple analytical results of the particle flux varying cubically with the Shields number can be ob...

Multimedia resource adaptation is a means of accessing streaming media using a variety of access schemes on a diverse range of devices. The capability descriptors, which are used for MPEG-21 Digital Item Adaptation, describe the terminal and network for an application involving media resource delivery. Our simulations are performed using a versatile test bed demonstrating possible functionaliti...

background: the control of leishmaniasis, a tropical neglected disease, has been concern of iranian health authori­ties due to the increasing number of cases during the last two decades. the objective of this study was to determine del­tamethrine residue on the impregnated bed nets using hptlc technique in a leishmaniasis control program in iran. methods: during this experimental study, a total...

Over the last few years, research in the area of mobile ad hoc networks (MANETs) has focused on routing protocol performance improvements, security enhancements, power consumption optimizations, and quality of service metrics. The availability of sophisticated network simulation tools, such a NS2 and GloMoSim, has allowed researchers to study MANETs without purchasing the mobile nodes themselve...

Recent studies have observed deviation from normal (Fickian) diffusion in sediment tracer dispersion that violates the assumption of statistical convergence to a Gaussian. Nikora et al. (2002) hypothesized that particle motion at short time scales is superdiffusive because of inertia, while long-time subdiffusion results from heavy-tailed rest durations between particle motions. Here we test th...

This paper presents the design, architecture, implementation, and experimental results from a networked mobile sensor test-bed developed for collaborative sensor tracking applications. The test-bed comprises a fleet of networked mobile sensors, an indoor localization system, a control, debugging and management infrastructure, and a tiered wireless ad hoc network for seamless integration of the ...

Large floods in northwestern California in the past two decades have mobilized extensive areas of valley floors, removed streamside trees, and widened channels. Channel cross sections were surveyed to illustrate an hypothesis on the linkage between sediment transport, colonization of channel margins by trees, and streambank recovery. Riparian trees, e.g., white alder (Alnus rhombifolia) , colon...