The widespread deployment of WDM optical networks posts lots of new challenges for network designers. Traffic grooming is one of the most common problems. Efficient grooming of traffic can effectively reduce the overall cost of the network. But unfortunately, traffic grooming problems have been shown to be NP-hard. Therefore, new heuristics must be devised to tackle them. Among these approaches...

In this article, modeling in queuing systems with heavy traffic customer flows is reviewed. Key areas include their limiting distributions, asymptotic behaviors, modeling issues and applications. Heavy traffic flows are features of queuing in modern communications, transportation and computer systems today. Initially, we reviewed the onset of asymptotic modeling for heavy traffic single server ...

Original scientific paper Urban road intersections are bottle-necks of urban road networks, and the traffic organization optimization of intersections is the crux to relieve urban traffic jam. After analysing the features, applicable conditions and functions of the intersection channelization design, the basic procedures based on traffic survey, channelization design of the intersections and as...

-The analytical study and forecasting of network traffic has wide applications in many areas of technology and has led to many researches in the current field. Various experiments and analysis has been carried out in the field of computer network applications. The analysis and forecasting of network traffic is a means of reliable and secure network communication. Many techniques have been propo...

One of the most important problems in large communication networks like the Internet is the problem of routing traffic through the network. Current Internet technology based on the TCP protocol does not route traffic adaptively to the traffic pattern but uses fixed end-to-end routes and adjusts only the injection rates in order to avoid congestion. A more flexible approach uses load-adaptive re...

Nowadays, traffic congestion has become a serious problem that plagues the development of many cities aroundthe world and travel life urban residents. Compared with costly long implementation cyclemeasures such as promotion public transportation construction, vehicle restriction, road reconstruction, etc., prediction is lowest cost best means to solve congestion. Relevant departmentscan give ea...

The exposure-response relationships between subjective annoyance with sleep disturbance from railway trains and road traffic noise were established from an extensive social survey by CENVR (Center for Environmental Noise and Vibration Research) in Korea. The objectives of this research are to determine the long-term effects of noise on sleep and to compare the exposure-response relationships fr...