Making cloud services responsive is critical to providing a compelling user experience. Many largescale sites, including LinkedIn, Digg and Facebook, address this need by deploying pools of servers that operate purely on in-memory state. Unfortunately, current technologies for partitioning requests across these inmemory server pools, such as network load balancers, lead to a frustrating program...

6.1 GENERAL This chapter describes the limitations observed in conventional Grid architecture and the integration of virtualization techniques to address them. The integration of virtualization technologies in Grid infrastructure allows scheduling user's application to the potential physical resources even if they do not possess required application environment by creating virtual resources as ...

In Denmark, the right to hunt is vested with the land owner but can be transferred to others and is traded on a well-established market. The dominant form of hunting leases is time limited contract transferring the hunting rights on a piece of land to one or more persons. We analyze this market for hunting leases using the hedonic method on a rich set of data obtained from Danish hunters. We hy...

Resource provisioning is one of the main challenges in large-scale resource sharing environments such as federated Grids. Recently, many resource management systems in these environments have started to use the lease abstraction and virtual machines (VMs) for resource provisioning. In resource sharing environments resource providers serve requests from external users along with their own local ...

In this paper, the primary network leases some part of its available resources to cognitive radio (CR) users, with the aim of increasing its achievable data rates. In counterpart, CR users are allowed to exploit the leased resource for their own transmission. By using distributed beamforming among CR nodes, we formulate a beamforming problem so as to optimize the parameters involved in the leas...

This paper describes a method for constructing a distributed database from a set of compute-nodes, a local area network, and a set of object-disks. We assume object-disks do not fail; nodes can fail or go to sleep for long periods. In order for a node to access an object inside an object-disk a valid lease is required. There are two issues that need resolving (1) how to build a database on top ...

The convergence of wireless access networks in conjunction with the increased computing power of the handheld terminals is preparing the emergence of the ubiquitous computing paradigm. In the center of this paradigm are smart spaces, which are local environments saturated with various embedded computational resources. These spaces co-operate with mobile client devices in enabling advanced, serv...