Dynamic compilation and optimization are widely used in heterogeneous computing environments, in which an intermediate form of the code is compiled to native code during execution. An important tradeoff exists between the amount of time spent dynamically optimizing the program and the running time of the program. In this paper, we explore this trade-off for an important optimization – global re...

ID: 268 Eric D. Antmann, Nurcin Celik*, Xiaoran Shi, and Yading Dai Department of Industrial Engineering, The University of Miami, Coral Gables, FL, USA *Telephone: (305) 284-2391, E-mail: [email protected] Abstract Solid waste produced as a by-product of our daily activities poses a major threat to societies as populations grow and economic development advances. Consequently, the effective manag...

The article addresses combinatorial optimization schemes for design of multi-layer communication network topology. The paper consists of three parts: (a) description of system issues as basic requirements, trends (e.g., evolution, upgradeability), and a ”system space” for contemporary network design; (b) brief description of some basic combinatorial optimization problems as follows: multicriter...

Distribution design for databases usually addresses the problems of fragmentation, allocation and replication. However, the main purposes of distribution are to improve performance and to increase system reliability. The former aspect is particularly relevant in cases where the desire to distribute data originates from the distributed nature of an organization with many data needs only arising ...

The development of a distributed database system requires effective solutions to many complex and interrelated design problems. The cost dependencies between query optimization and data allocation on distrihuled systems are well recognized but little understood. We investigate these dependencies by proposing and analyzing an iterative heuristic which provides an integrated solution lo the query...

In this paper a novel cross layer resource allocation for downlink transmission with heterogeneous traffic in wireless networks is developed. The problem of efficient resource allocation for multiuser orthogonal frequency division multiplexing over Rayleigh fading channels is addressed. Subcarrier and power allocation are carried out sequentially to reduce the complexity. Assuming that the base...

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 ...

Service oriented modeling and simulation are hot issues in the field of modeling and simulation, and there is need to call service resources when simulation task workflow is running. How to optimize the service resource allocation to ensure that the task is complete effectively is an important issue in this area. In military modeling and simulation field, it is important to improve the probabil...

optimization of maintenance resources to maximize the system availability is a major concern in different manufacturing systems. therefore, a lot of effort is put to construct optimization models to reach the maximum availability level and to reduce the costs of lack of availability. however, despite these efforts, data uncertainty in the real world problems was neglected in proposed models whi...

This paper proposes a model predictive control (MPC) approach to the periodic implementation of the optimal solutions of a class of resource allocation problems in which the allocation requirements and conditions repeat periodically over time. This special class of resource allocation problems includes many practical energy optimization problems such as load scheduling and generation dispatch. ...