Cloud computing is a new paradigm and innovation in the technology service delivery. It is utilized for IT-enabled value creation. The capex-free nature of cloud service delivery renders it very attractive to many SMEs. But it is saddled with multi-tenancy issues; prominent under this study are concerns of privacy, trust and availability. How do end-users trust providers with their sensitive da...

The virtualisation of Radio Access Networks (RANs) is one of the goals in designing 5G mobile networks. This paper aims at presenting a proof of concept for the virtualisation of radio resources using Open Air Interface (OAI), a software-based Long-Term Evolution (LTE) eNodeB physical emulator. OAI was extended to support multi-tenancy, representing diverse Virtual mobile Network Operators (VNO...

Cloud Computing is an emerging paradigm to offer on demand IT services to customers. The access control to resources located in the cloud is one of the critical aspects to enable business to shift into the cloud. Some recent works provide access control models suitable for the cloud, however there are important shortages that need to be addressed in this field. This work presents a step forward...

In the last few decades, the effects of cooperative R&D arrangements on innovation and welfare have played an important role in policy making. Both the US and the EU have legislation in place providing for lenient antitrust treatment of such cooperative agreements. The goal of this paper is to analyze the effects of cooperative R&D arrangements in a model with a stochastic R&D process and outpu...

Inter-institutional cooperation is becoming the norm for innovations putting at centre stage of research inquiry the organisational knowledge for establishing, coordinating and innovating through cooperation. Case study evidence depicts the development of systematic processes for partner identification and management of cooperative agreements. Researchers recognising potential partners would pe...

Negotiated Agreements (NAs) are arrangements between firms and regulators in which firms voluntarily agree to reduce their pollution. This article analyzes the institutional features that facilitate or hamper the implementation of NAs. We illustrate the analysis with case studies on the implementation of NAs in the United States, Germany, the Netherlands, and France. We find that NAs are implem...

The availability of powerful servers with terabytes of main-memory has sparked a renewed interest in main-memory database systems. Many early proposals focus on a single workload type, either short transactions or long-running, read-only analytical queries. In this thesis, we focus on allowing a broad range of workloads to be executed concurrently on the same state of the data. While concurrenc...