The physical activities of a real wireless network are represented by events which are the main components of a discrete event simulation (DES) system and are produced by its event generator during simulation time. Each network service (e.g. voice, data and video) constitutes an event for a particular mobile user. A critical component within the simulation system, called scheduler, runs by sele...

In the recent decade, numerous researchers have proposed extended version of scheduling problem named as multimode resource constrained scheduling problem (MMRCSP), claiming it to be a more practical way of capturing production characteristics. However, this flexibility comes with increased complexity. The present work proposes a framework for such multimode scheduling problems in order to prov...

In this paper we consider resource-constrained time-dependent scheduling systems, Le. decision support systems with time as the important planning component. Instead of dealing with optimalization aspects of the planning problem, we concentrate on schedule management, i.e. stepwise planning with respect to primitive functions, like handling single decisions or constraints. The design of these s...

Construction projects are characterized by their dynamic nature and operational details. This paper presents a hybrid simulation methodology; designed to model construction projects. The methodology utilizes Discrete Event Simulation (DES) and System Dynamics (SD). DES has been widely used in modeling construction operations; however, it lacks the ability to model the global aspects of operatio...

As a general branch of project scheduling problems, resource investment problem (RIP) considers resource availabilities as decision variables to determine a level of employed resources minimizing the costs of the project. In addition to costs (cash outflows), researchers in the later extensions of the RIP took payments (cash inflows) received from clients into account and used the net present v...

Risk Management is an essential process of construction project planning. When a risk event occurs during project execution, the required actions are taken by project managers using their own experience and knowledge. While knowledge and experience gained in past projects is very useful in identifying and managing risks in a new project, such information resides primarily in Project Managers’ m...

Decision support systems are intended to assist human decision makers. In complex, dynamic domains a proper task apportionment between the computer and the human decision maker largely dictates system success. Task apportionment is even more critical when exceptions are introduced into the system. We examine an airbase logistics scheduling and planning system, a complex and dynamic application ...

A discrete event simulation model was developed and used to estimate the storage area required for a proposed overseas textile manufacturing facility. It was found that the simulation was able to achieve this because of its ability to both store attribute values and to show queuing levels at an individual product level. It was also found that the process of undertaking the simulation project in...

A simulation study in construction management is business information that supports decision-making activities in construction planning and scheduling. To be confident in the various results of a simulation study, it is intuitive to be confident first in the collected simulation model inputs. This paper proposes properties to verify and validate simulation model inputs. The proposed V&V (Verifi...

Due to complexity and dynamics of construction work, resource, cash flows, poor management them usually leads time cost overruns, bankruptcy, even project failure. Existing approaches in failed achieve optimal control resource flow a dynamic environment with uncertainty. Therefore, this paper introducess model method adaptive the flows optimize work projects. First, mathematical based on partia...