Search results for "Communication system"
showing 10 items of 139 documents
Why Benefits Realization from ERP in SMEs Doesn't Seem to Matter?
2011
Author's version of a chapter in Proceedings of the 44th Hawaii International Conference on System Sciences. Also available from the publisher: http://dx.doi.org/10.1109/HICSS.2011.497 It is often argued that IT investments require active management practices for benefits realization. This applies also to enterprise resource planning (ERP) systems. As well, benefits realization efforts are assumed to create more value than they cost. Hence, the maturity of organizations should be increased and their cultures cultivated towards more rational benefits realization practices. Our study on ERP implementations in Egyptian medium-sized organizations, however, provides aberrant results that challen…
On the evolution of e-Government: The user imperative
2003
Published version of a chapter published in Lecture Notes in Computer Science, 2739, 139-143. Also available from the publisher at: http://dx.doi.org/10.1007/10929179_25 This paper focuses the need for more research on user involvement and the investigation of stakeholders in e-Government initiatives. An investigation of existing work revealed a lack of research on those topics. As e-Government evolves and users mature, the value of their input can increase. The paper discusses the need and potential benefits of this approach. Finally, we suggest that existing stakeholder theory is investigated for adaptation into e-Government settings in order to map the complex body of interrelated stakeh…
HINTS: A novel approach for realistic simulations of vehicular communications
2012
One of the main challenges in the Vehicular Ad-Hoc Networks (VANETs) research domain is the simulation of vehicular communications using realistic mobility models. Several efforts have been put lately in this purpose; yet, the proposed models are either inappropriate, or carry significant disadvantages. In this paper, we propose a novel approach for realistic simulations in vehicular networks, inspired from the hierarchical video and image compression technique. We developed HINTS (Hybrid Integration of Network and Traffic Simulators), the correspondent platform, engendered from the integration of SUMO, a traffic simulator and NS-3, a network simulator after adding some supplemental modules…
A Non-WSSUS Mobile-to-Mobile Channel Model Assuming Velocity Variations of the Mobile Stations
2017
This paper aims to characterize the effects that the velocity variations of the mobile stations (MSs) produce on the correlation properties of non-stationary time-frequency (TF) dispersive mobile- to-mobile (M2M) fading channels. Toward that end, we propose a novel geometrical model for non-wide-sense stationary uncorrelated scattering (non-WSSUS) M2M channels that incorporates such variations following a plane wave propagation approach. Capitalizing on the mathematical simplicity of this approach, we derive a general expression for the four-dimensional (4D) TF correlation function (TFCF) of the proposed channel model. From this expression, we analyze the influence of the MSs' acceleration#…
Metacommunication Patterns in Online Communities
2009
Published version of a chapter in the book: Online Communities and Social Computing. Also available from the publisher at http://dx.doi.org/10.1007/978-3-642-02774-1_26 This paper discusses about contemporary literature on computer-mediated metacommunication and observes the phenomenon in two online communities. The results contribute by identifying six general-level patterns of how metacommunication refers to primary communication in online communities. A task-oriented, user-administrated, community (Wikipedia in Finnish) involved a remarkable number of specialized metacommunication genres. In a centrally moderated discussion-oriented community (Patientslikeme), metacommunication was inter…
Single Cell analysis evidence heterogeneous expression of the Agr communication system of[i] Listeria monocytogenes[/i]
2011
Affiche, résumé; absent
Involvement of communication systems during the sessile growth of Listeria monocytogenes
2007
International audience
Quality, Reliability, Security and Robustness in Heterogeneous Systems
2020
This book constitutes the refereed post-conference proceedings of the 15th EAI International Conference on Quality, Reliability, Security and Robustness in Heterogeneous Networks, QShine 2019, held in Shenzhen, China, in November 2019. The 16 revised full papers were carefully reviewed and selected from 55 submissions. The papers are organized thematically in tracks, starting with mobile systems, cloud resource management and scheduling, machine learning, telecommunication systems, and network management.
Mutual informing between IS Academia and Practice: Insights from KIWISR-5
2011
Publisher's version of an article published in the journal: Communications of the Association for Information Systems. Also available from the publisher at: http://aisel.aisnet.org/cais/vol29/iss1/7 The relationship between Information Systems (IS) scholars and IS practitioners has been debated since the birth of the IS discipline. How are academics interacting with practice, and how should we? In this article we propose that academia-practice collaboration, namely “mutual informing,” is an existential aspect of the Information Systems field. This article is based on presentations, discussions, group work, and a debate that took place during the Fifth Kristiansand International Workshop on …
Improving Chord Lookup Protocol for P2PSIP-Based Communication Systems
2009
Chord has been suggested as mandatory overlay technology in the future P2PSIP-based communication systems. Chord allows for the available peer/resource lookup in no more than hops, where N is the total number of the peers in the overlay network. However, as a protocol originally designed for background downloading applications, Chord has a few drawbacks when supporting P2PSIP real-time communication systems. These drawbacks are related to ID assignment, the relation between ID and physical location, the routing styles and lack of cache, etc. In this paper, we investigate several approaches that can improve the efficiency of the peer/resource lookup algorithm. After that, we simulate two sys…