Mobile database applications through wireless equipments e.g., PDAs, laptops, cell phones and etc. are growing rapidly. In such environment, clients, servers and object may change their locations. A very applicable class of query is continuous k-NN query which continuously returns the k nearest objects to the current location of the requester. Respect to limitations in mobile environments, it i...

This paper presents a distributed grid based robust clustering protocol for mobile wireless sensor networks. An overwhelming majority of current research on sensor network routing protocols considers static networks only, while we consider mobile environment. grid based robust clustering is a distributed location based, energy aware clustering protocol designed for mobile sensor networks. grid ...

The increasing availability of Web services and grid computing has made easier the access and reuse of different kind of services. Web services provide network accessible interfaces to application functionality, while grid computing enables the efficient distribution of computing resources and power. Mobile devices as a platform of computing have become a ubiquitous, inexpensive, and powerful c...

Access to Grid services is currently limited to devices having significant computing, network resources etc. such as desktop computers. On the other hand, most of mobile devices do not have the potential resources to be either direct clients or to host services in the Grid environment. Yet, extending the potential of the Grid to a wider audience promises increase in its flexibility and producti...

Currently, access to Grid services is limited to resourceful devices such as desktop PCs but most mobile devices (with wireless network connections) cannot access the Grid network directly because of their resource limitations. Yet, extending the potential of the Grid to a wider audience promises increase in flexible usage and productivity. In this paper we present a middleware architecture tha...

While regulatory issues on telecommunications and data handling have been established in a generic and service-neutral manner, typically independent of detailed technical applications or application domains, the uprise of new technology and new systems requires always a revisiting of those regulations. Thus, since the new trend of mobile grids — including an integrated traditional grid computin...

With rapid advances in network technology and distributed computing, Grid computing has been widely used in not only the science but also the business. Grid computing plays an important role in our daily activities. People can access and receive services from the resource constrained ubiquitous devices such as PDA and mobile phone. To allow the ubiquitous device to use the Grid resource, it is ...

In the last decade, Grid Computing and Pervasive Computing paradigms have emerged and rapidly affirmed. These two worlds, however, can no longer be separated islands. As a matter of fact, traditional grids are moving towards Pervasive Grid environments and, as a result, they benefit from both grid and mobile technologies. In particular, a key feature of the Pervasive Computing paradigm, like th...

The creation of a secure architecture for a Mobile Grid environment is presented in this paper using conceptual security domains and PKI infrastructure within the context of the Akogrimo EU project. Identity stems from the network domain for mobile services and interacts with the core Grid infrastructure specific services managing the Mobile Dynamic Virtual Organisations (MDVO). A model is pres...

Combining Mobile Internet and Grid technologies could mean the ability to command the power of supercomputers with a mobile device. The computing and data transfer capacities of mobile devices are expanding and Grid-related technologies are already being employed in them. In this paper, we survey the current technologies and standards, mainly concentrating on MIDP (Mobile Information Device Pro...