Physical Sciences and Mathematics Commons^™

A Channel Model For Wireless Underground Sensor Networks Using Lateral Waves, Xin Dong, Mehmet C. Vuran

CSE Conference and Workshop Papers

Wireless Underground Sensor Networks (WUSNs) are an emerging type of wireless sensor networks (WSNs), where sensor nodes are located under the ground and communicate through soil. The major challenge in the development of efficient communication protocols for WUSNs is the characterization of the underground channel. So far, none of the existing models fully capture all the components of electromagnetic signal propagation in the soil medium. In this paper, three major components that influence underground communication are identified: direct, reflected, and lateral waves, where the latter has not been analyzed for WUSNs so far. Accordingly, a closed-form three-wave (3W) channel model …

Feature Interaction Faults Revisited: An Exploratory Study, Brady J. Garvin, Myra B. Cohen

CSE Conference and Workshop Papers

While a large body of research is dedicated to testing for feature interactions in configurable software, there has been little work that examines what constitutes such a fault at the code level. In consequence, we do not know how prevalent real interaction faults are in practice, what a typical interaction fault looks like in code, how to seed interaction faults, or whether current interaction testing techniques are effective at finding the faults they aim to detect.

We make a first step in this direction, by deriving a white box criterion for an interaction fault. Armed with this criterion, we perform …

Seventh International Workshop On Software Engineering For Secure Systems (Sess 2011), Seok-Won Lee, Mattia Monga, Jan Jürjens

CSE Conference and Workshop Papers

The 7th edition of the SESS workshop aims at providing a venue for software engineers and security researchers to exchange ideas and techniques. In fact, software is at core of most of the business transactions and its smart integration in an industrial setting may be the competitive advantage even when the core competence is outside the ICT field. As a result, the revenues of a firm depend directly on several complex software-based systems. Thus, stakeholders and users should be able to trust these systems to provide data and elaborations with a degree of confidentiality, integrity, and availability compatible with their …

A Dynamic Local Method For Bandwidth Adaptation In Bundle Links To Conserve Energy In Core Networks, Lin Liu, Byrav Ramamurthy

CSE Conference and Workshop Papers

Energy savings in bundle links of the core network has been investigated recently. The bundle link technique is widely used in current core networks to provide higher bandwidth and more resilience. Basically a bundle link is composed of several high-speed physical sublinks which could be SONET connections, Ethernet circuits, etc. in order to make them work together as a virtual connection. In current network operations, all of the sublinks are activated if the bundle link is powered on although the sublinks could be shut down or brought up independently. Smartly and dynamically shutting down and bringing up sublinks and their …

Minimizing Resource Blocking Rate In Goobs, Shivashis Saha, Jitender S. Deogun, Lisong Xu

CSE Conference and Workshop Papers

The state of the resources at a destination in Grid computing over OBS architecture (GoOBS) may change between a task’s selection of a destination and its arrival at the destination. These changes in the availability of the resources requested at the destination may lead to blocking of tasks, and thus increase the resource blocking rate.

In this paper, we investigate the resource scheduling problem in GoOBS. Our objective is to minimize the resource blocking rate by containing the impact of the changes in the availability of the resources at a destination. We propose a non-selfish destination selection paradigm to minimize …

Refactoring Pipe-Like Mashups For End-User Programmers, Kathryn T. Stolee, Sebastian Elbaum

CSE Conference and Workshop Papers

Mashups are becoming increasingly popular as end users are able to easily access, manipulate, and compose data from many web sources. We have observed, however, that mashups tend to suffer from deficiencies that propagate as mashups are reused. To address these deficiencies, we would like to bring some of the benefits of software engineering techniques to the end users creating these programs. In this work, we focus on identifying code smells indicative of the deficiencies we observed in web mashups programmed in the popular Yahoo! Pipes environment. Through an empirical study, we explore the impact of those smells on end-user …