abstract the limitation of water sources in most places all over the world, especially in arid and semi-arid lands is an important issue for those who live in these areas. many governments have dedicated their efforts toward finding new water resources to obtain water. fog and cap clouds harvesting are one of the candidate methods to produce pure water. many countries including chile, peru, ecu...

Brewer’s conjecture, and its resulting formalization as the CAP theorem, impose serious limitations on the consistency, availability and network partitioning tolerance characteristics of distributed systems. Despite its importance however, few works explicitly consider the implications of the CAP theorem in the design of applications, especially for applications that are designed natively for t...

THE CAP THEOREM’S BROAD REACH The CAP theorem has been highly influential within the cloud computing community, and is widely cited as a justification for building cloud services with weak consistency or assurance properties. CAP’s impact has been especially important in the first-tier settings on which we focus in this article. Many of today’s developers believe that CAP precludes consistency ...

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Cloud computing has been identified by Gartner as one of the ten most disruptive technologies for the next decade. It has made many promises and the first products have appeared on the market place and are rapidly gaining adoption. Time to step back a bit. This talk first gives an overview of the promises made by cloud computing. Which promises really matter? Which promises were only made becau...

Cloud computing has drawn increasing attention from the scientific computing community due to its ease of use, elasticity, and relatively low cost. Because a high-performance computing (HPC) application is usually resource demanding, without careful planning, it can incur a high monetary expense even in Cloud. We design a tool called CAP (Cloud AutoProvisioning framework for Parallel Processing...

We consider a mobile cloud computing system with multiple users, a remote cloud server, and a computing access point (CAP). The CAP serves both as the network access gateway and a computation service provider to the mobile users. It can either process the received tasks from mobile users or offload them to the cloud. We jointly optimize the offloading decisions of all users, together with the a...

We consider a general multi-user Mobile Cloud Computing (MCC) system where each mobile user has multiple independent tasks. These mobile users share the computation and communication resources while offloading tasks to the cloud. We study both the conventional MCC where tasks are offloaded to the cloud through a wireless access point, and MCC with a computing access point (CAP), where the CAP s...

We investigate the performance of Internet-ofThings (IoT) networks under passive attacks from eavesdroppers capable of monitoring individual links. An IoT network with multiple sensor classes is studied where every sensor class has a local access point (LAP) which are connected to one or more small cell base-station access points (SAP) which in turn are connected to a central cloud access point...

With the emergence of cloud computing, many organizations have moved their data to the cloud in order to provide scalable, reliable and high available services. As these services mainly rely on geographically-distributed data replication to guarantee good performance and high availability, consistency comes into question. The CAP theorem discusses tradeoffs between consistency, availability, an...