This study investigates the performance of GSM and Enhanced Data rate for GSM Evolution (EDGE) mobile communication systems operating in both Additive White Gaussian Noise (AWGN) channel and Rayleigh fading channels. This investigation presents the characteristics of the bit error rate (BER) for conventional GSM and GSM/EDGE MCS-1 and GSM/EDGE MCS-7 systems. These characteristics are compared f...

The Gaussian scale mixture model (GSM) is a simple yet powerful probabilistic generative model of natural image patches. In line with the well-established idea that sensory processing is adapted to the statistics of the natural environment, the GSM has also been considered a model of the early visual system, as a reasonable"first-order"approximation of the internal model that the primary visual...

Abstract. Artifact-centric business processes have recently emerged as an approach in which processes are centred around the evolution of business entities, called artifacts, giving equal importance to control-flow and data. The recent Guard-State-Milestone (GSM) framework provides means for specifying business artifacts lifecycles in a declarative manner, using constructs that match how execut...

GSM (Global System for Mobile) is the most widely-used cellular phone technology. Having begun mostly as a European standard, it has spread throughout the world to become ubiquitous. GSM was one of the first digital cellular systems, and as such, represented another level of magnitude in terms of complexity, with support for growth features such as GPRS (General Packet Radio Service), which pro...

1 work partially supported by CSISEI-CNR Abstract Mobility in cellular networks requires to manage handovers, which occur as users move from one cell to another. Their effects, which are easily overcome for speech, may seriously affect data transmissions. In this paper we report about tests for evaluating the quality of transmission for data applications on a GSM cellular network. Static tests,...

Case Management (CM) is a BPM technology for supporting flexible services orchestration. CM approaches like the OMG standard CMMN and one of its core influences GSM use Event-Condition-Action rules, which can be inconsistent due to cyclic interdependencies between the rules. Repairing an inconsistent case management schema is difficult. To avoid this problem, we provide a technique for automati...

We present the implementation of a communication architecture for accessing TCP/IP networks (mainly Internet) through GSM links. We exploit the existing and widely used TCP/IP communication architecture, but also take into account the specific features of wireless links and GSM networks. Our architecture is based in the indirect model of client/server interaction, where an intermediate element ...

Case Management (CM) is a BPM technology for supporting flexible services orchestration. CM approaches like CMMN, an OMG standard, and GSM, one of CMMN’s core influences, use Event-ConditionAction rules, which can be inconsistent due to cyclic inter-dependencies between the rules; repairing such an inconsistent case management schema is difficult. To avoid the problem of inconsistencies altoget...