Smart transducer technology supports the composability, configurability, and maintainability of sensor/actuator networks. The configuration and management of such networks, when carried out manually, is an expensive and error-prone task. Therefore, many existing fieldbus systems provide means of “plug-and-play” that assist the user in these tasks. In this paper we describe configuration and man...

A time-dependent bosonic string configuration is discussed, in graviton and dilaton backgrounds, leading to Weyl-symmetry beta-functions which are homogeneous in X, to any order in α ′ . As a consequence, a string reparametrization can always be implemented, such that beta functions can be cancelled, to any order in α ′ . This non-perturbative conformal invariance is valid for any target space ...

Multiprotocol label switching (MPLS) has several advantages over destination-based IP routing protocols: it allows to setup end to end paths explicitly (also called label switched paths, LSP), to better monitor the traffic on these LSPs, to perform admission control, etc. While routing along a LSP is considered faster than IP routing, the operation of changing a LSP pipe requires processing and...

Run-time assignment of a set of communicating tasks onto a heterogeneous multiprocessor system-on-chip (MPSoC) platform is a challenging task. Having FPGA fabric tiles in such MPSoC platform increases performance and flexibility of the platform. Such FPGA tiles can not only run tasks in hardware but also instantiate a soft IP core that executes the task functionality. Thus fully exploiting the ...

A method is presented for computation of obstacle boundaries in configuration space, with particular emphasis on time efficiency. Properties of configuration space transformations are presented in general, and these properties are invoked in algorithms that result in highly efficient computations. The approach depends on the definition of a set of primitives, which are themselves efficiently tr...

Consumer-electronics systems are becoming increasingly complex as the number of integrated applications is growing. Some of these applications have real-time requirements, while other non-real-time applications only require good average performance. For cost-efficient design, contemporary platforms feature an increasing number of cores that share resources, such as memories and interconnects. H...

in this paper, analysis and simulation of media gateway controller (megaco) based cops (common open policy server) which is a protocol defined in ietf (internet engineering task force) to transport configuration requests and deliver the policies is presented. for this scenario, three queuing models include m/m/1, m/m/c and m/d/c were applied . then, some of the key performance benchmarks look l...

typically, two configurations are used for energy harvesting, with different advantages: piezoelastic and piezomagnetoelastic. best performance of piezoelastic configuration is limited to its narrow bandwidth around the resonance frequency. if the excitation frequency slightly deviates from the resonance frequency, the power-out is severely reduced. to overcome this, the piezomagnetoelastic has...

Each system has its own definition of reliability. Reliability in mobile ad-hoc networks (MANET) could be interpreted as, the probability of reaching a message from a source node to destination, successfully. The variability and volatility of the MANET configuration makes typical reliability methods (e.g. reliability block diagram) inappropriate. It is because, no single structure or configurat...