Fuzzy Based Priority Scheduler Research Articles

An Intuitionistic Fuzzy Based Novel Approach to CPU Scheduler.

The extension of CPU schedulers with fuzzy has been ascertained better because of its unique capability of handling imprecise information. Though, other generalized forms of fuzzy can be used which can further extend the performance of the scheduler. This paper introduces a novel approach to design an intuitionistic fuzzy inference system for CPU scheduler. The proposed inference system is implemented with a priority scheduler. The proposed scheduler has the ability to dynamically handle the impreciseness of both priority and estimated execution time. It also makes the system adaptive based on the continuous feedback. The proposed scheduler is also capable enough to schedule the tasks according to dynamically generated priority. To demonstrate the performance of proposed scheduler, a simulation environment has been implemented and the performance of proposed scheduler is compared with the other three baseline schedulers (conventional priority scheduler, fuzzy based priority scheduler and vague based priority scheduler). Proposed scheduler is also compared with the shortest job first CPU scheduler as it is known to be an optimized solution for the schedulers. Simulation results prove the effectiveness and efficiency of intuitionistic fuzzy based priority scheduler. Moreover, it provides optimised results as its results are comparable to the results of shortest job first.

A Priority Scheduler Based Qos For Dynamic Source Routing Protocol Using Fuzzy Logic In Mobile Ad-hoc Network

Mobile ad hoc network is an autonomous system of mobile nodes characterized by wireless links. A wireless Ad-hoc network consists of wireless nodes communicating without the need for a centralized administration, in which all nodes potentially contribute to the routing process. In this paper we design a fuzzy-based priority scheduler to determine the priority of the packets. We analyze packet scheduling algorithm to find those that most improve performance in congested network. Hence, a scheduling algorithm to schedule the packet based on their priorities will improve the performance of the network. Packet schedulers in wireless ad hoc networks serve data packets in FIFO order. Here, we present a fuzzy based priority scheduler for mobile ad-hoc networks, to determine the priority of the packets using Destination Sequenced Distance Vector (DSRs) as the routing protocols. The performance of this scheduler has been studied using OPNET simulator and measured such as packet delivery ratio, end-to-end delay and throughput. It is found that the scheduler provides overall improvement in the performance of the system when evaluated under different load and mobility conditions.

Performance Evaluation of a Novel Fuzzy Based Priority Scheduler for Mobile Ad-hoc Networks and its Effect on MAC Protocols

Performance Evaluation of a Novel Fuzzy Based Priority Scheduler for Mobile Ad-hoc Networks and its Effect on MAC Protocols