—In the current cloud computing environment, the size of the server cluster in the data center is growing in response to the increasing traffic. Due to the use of multiple replicas in the server cluster to provide the same services, effective load balancing as a key technology is very important. In this paper we implement and evaluate an alternative loadbalancing architecture using OpenFlow sw...

Cognitive Radio (CR) is an emerging technology for future wireless communication and technology. In the existing system, there is a multiple allocation over all the bands and also there is a crisis for spectrum availability, therefore a new approach for spectrum licensing is needed. Hence the optimal solution for the above case is cognitive radio. the resource-allocation problem in multihop CR ...

Firewalls form the first line of defense in securing internal networks from the Internet. A Firewall only provides security if all traffic into and out of an internal network passes through the firewall. However, a single firewall through which all network traffic must flow represents a single point of failure. If the firewall is down, all access is lost. A common solution to this problem is to...

In a mass production environment where resources such machines are shared, a balanced and scheduled production flow line can play a pivotal role through the enhancement of line efficiency by minimizing production time. Balancing of production flow line is a classical OR problem which has been addressed extensively during the last few decades. But only few researches focused on the resource cons...

This paper studies the problem of optimal flow control in dynamic inventory systems. A dynamic optimal distribution problem, including time-varying supply and demand, capacity constraints on the transportation lines, and convex flow cost functions of Legendre-type, is formalized and solved. The time-varying optimal flow is characterized in terms of the time-varying dual variables of a correspon...

Hash-based load-balancing techniques are widely used to distribute the load over multiple forwarding paths and preserve the packet sequence of transport-level flows. Forcing a long-lived, i.e., elephant, flow to follow a specific path in the network is a desired mechanism in data center networks to avoid crossing hot spots. This limits the formation of bottlenecks and so improves the network us...

The long-term maintenance of stable redox-flow-battery performance requires a strategy to manage dynamic volume imbalances between electrolyte reservoirs. Even with ion-selective membranes as separators, bulk liquid exchange can occur within the reactor because pressure differences across its positive and negative chambers. Disproportionation chemistries, wherein both reservoirs have identical ...