Design of a Genetic Algorithmic Approach for Reducing Energy Consumption in Single Machine Production Systems

In traditional production systems, production is generally based on performance criteria such as total completion time, price and quality. Energy consumption or environmental impacts of prodcution systems are not often considered. This article deals with an NP-hard scheduling problem aiming to increase energy efficiency, which has been noticed by companies in recent years. A mathematical model is set up to minimize the total energy consumption in a single machine production system. Genetic algorithm method is used to solve this NP-Hard problem. To prove the efficiency of our model and algorithm, we use the sample problems in the reference paper. According to the test results, our model and algorithm have been shown to reduce energy consumption by 50% compared to the algorithm in the reference paper

A Multichannel Cross-Layer Architecture for Multimedia Sensor Networks

Depending upon the technological developments, the same fast evolution has occurred in the structures of sensor networks, their composing devices which are sensor nodes, and their application areas. Those tiny, energy-constrained, mostly non-real-time data transmitting sensor nodes have evolved to more energy-containing, camera-adapted, real-time multimedia-data-transmitting devices. Developments in the usage areas and the capabilities have revealed some other problems such as time limited data transmission. In this paper, we propose a multichannel cross-layer architecture for Quality of Service (QoS) constrained multimedia sensor networks. The proposed architecture considers both the time and energy efficiency concepts. Energy efficiency is succeeded by ensuring the fair load distribution among the nodes during a real-time multimedia packet stream transmission. Besides ensuring the fair load distribution, on-time packet transmission is also assured by constructing the paths with a hard reservation technique depending on the predetermined QoS constraints. Simulations show that the proposed architecture provides higher performance than the Greedy approach and the LEERA scheme

A Novel Multicasting Innovation with Optical Burst Switching

Today, telecommunication and computing technology offer various novel applications for users with utilizing many technologies that cooperate with each other to ensure the required bandwidth. Internet Protocol Television (IPTV), Video on demand (VOD) and pay per view (PPV) applications use multicasting with wavelength division multiplexing (WDM). Thus, we worked on providing multicast over Optical Burst Switching (OBS) networks with a novel protocol named Precalculated Path Multicast (PPM). Protocol's structure and process is explained with state diagrams. Here, in addition to basic message types: join/leave and pause/continue that are used during the sessions, special message types are designed. Most convenient message types are proposed in the project that may trigger the actions and may change the states at the diagrams