Resource reservation has been widely used in many realtime systems to guarantee the proper access to the system resources. Despite that being the memory a key resource, it has attracted little attention in the specific area of realtime systems. In order to use dynamic memory in real-time systems, two fundamental problems have to be settled: allocation and deallocation in bounded time, and the f...

In this paper we propose an approach for solving problems of optimal resource capacity allocation to a collection of stochastic dynamic competitors. In particular, we introduce the knapsack problem for perishable items, which concerns the optimal dynamic allocation of a limited knapsack to a collection of perishable or non-perishable items. We formulate the problem in the framework of Markov de...

In this paper, we present three parallel flexible approximate string matching methods on a parallel architecture with heterogeneous workstations to gain supercomputer power at low cost. The first method is the static masterworker with uniform distribution strategy, the second one is the dynamic master-worker with allocation of subtexts and the third one is the dynamic master-worker with allocat...

Due to the scarceness of communication resource, therefore, resource allocation in wireless networks is an important issue. In this paper, we introduce a time slot allocation problem for multi-user wireless networks to achieve fairness at the node level and high network throughput in WiMAX mesh networks. We first propose a multi-objective programming formulation to model the subscriber stations...

Shortening project duration is critical to product development project success in many industries. As a primary driver of progress and an effective management tool, resource allocation among development activities can strongly influence project duration. Effective allocation is difficult due to the inherent closed loop flow of development work and the dynamic demand patterns of work backlogs. T...

This paper studies a novel scalable network architecture combining optical burst switching (OBS) with dynamic wavelength allocation to guarantee quality of service (QoS). All processing and buffering functions are concentrated at the network edge and bursts are assigned to fast tuneable lasers and routed over a bufferless optical transport core using dynamic wavelength assignment. Different bur...

For efficient spectrum utilization in cognitive radio networks it requires appropriate allocation of idle frequency spectrum among coexisting cognitive radios while maximizing total bandwidth utilization and minimizing interference. The fixed spectrum allocation scheme leads to low spectrum utilization across the whole spectrum. This paper is an attempt to overcome the problem in such wireless ...

The enormous growth of mobile telephone traffic, along with the limited number of channels available, requires efficient reuse of channels. Channel allocation schemes can be divided into three categories: Fixed Channel Allocation (FCA), Dynamic Channel Allocation (DCA) and Hybrid Channel Allocation (HCA). In HCA, channels are divided into two disjoint sets: one set of channels is assigned to ea...

A Distributed Computing System (DCS) is a combination of application and system programs that exchanges data across a number of independent terminals connected by a communication network. Cost optimization in DCS can be achieve by optimize the performance of DCS. In task allocation two types of approaches are available and these are dynamic and static. Dynamic approach of task allocation is muc...

In the domain of naval command and control and warfare, the complex and dynamic nature of the environment makes that a warfare officer, who has to compile a tactical picture of the situation, has to deal with a large number of tasks in parallel. This study aims at investigating the use of a cognitive model of visual attention as part of the design of a software agent that supports such officers...