Message Sequence Charts (MSC) is a standard language widely used in telecommunication software engineering. The latest MSC standard, MSC-2000, includes new features such as time and data. In this paper, we propose a new construct called instance delay as an extension for timed MSC to enhance further its expressiveness. We define formally the semantics of the extension based on a partial order s...

This study examined the role of team identity on job satisfaction and job performance regarding the mediating role of the organizational identity. This paper is a correlation type using descriptive methods with applied goals. Our statistical population included all 420 male and female staffs of the telecommunication department in Eastern Azerbaijan province, Iran in 2014.Using stratified random...

Key management plays fundamental role in research on security service in wireless sensor networks (WSNs). However, due to the resource constraints, establishing pairwise keys in WSNs is not a trivial tasks. Several exiting key management schemes have been proposed in literature to establish pairwise keys between sensor nodes, but they either can not offer strong resilience against node capture ...

A combination of loss properties of Periodic Segmented Waveguides and second order wavelength conversion processes is shown to exhibit features which allow to realize an adjustable optical power limiter using classical integrated optics technologies. Results of numerical simulations are presented to confirm the viability of the proposed approach using input and output power levels in the range ...

This paper discusses how the FPGA architectures affect the implementation of Petri net specifications. Taking in consideration the observations from that study, a method is developed for obtaining VHDL descriptions amenable to synthesis, and tested against other standard methods of implementation. These results have relevance in the integration of access technologies to high speed telecommunica...

A quantum communication system that is capable of long-distance, highfidelity teleportation, and long-duration quantum storage is proposed. This system uses polarization-entangled photons and trapped-atom quantum memories and is compatible with transmission over standard telecommunication fiber. An extension of this architecture permits long-distance transmission and storage of Greenberger-Horn...

Non-repudiation is a security service that provides cryptographic evidence to support the settlement of disputes. In this paper, we introduce the state-of-the-art of non-repudiation protocols for multiple entities. We extend an existing multi-party non-repudiation (MPNR) protocol to allow an originator to send different messages to many recipients in a single transaction. We further propose an ...