In the past, telecommunication technologies did not present any particular problem for persons with visual disabilities. The telephones themselves were auditory in nature and could be operated by touch. As telecommunication begins to incorporate video and as telecommunication devices become more complex (including the incorporation of visual displays), new barriers are appearing. Fortunately, a...

we consider a grid network where nodes contain small buffers. a packet that faces a crowded buffer in its route will get extra latency and may be dropped. in this paper, we propose a novel flow control protocol called rfcc for grid networks. rfcc tries to reroute delayed packets and utilizes network coding to introduce a configurable amount of redundant information in the network, thereby incre...

The quickest path problem, a version of the shortest path problem, is to find a single quickest path which sends a given amount of data from the source to the sink with minimum transmission time. More specifically, the capacity of each arc in the network is assumed to be deterministic. However, in many real-life networks such as computer systems, telecommunication systems, etc., the capacity of...

We introduce bi-objective models for ring tree network design with a focus on network reliability within telecommunication applications. Our approaches generalize the capacitated ring tree problem (CRTP) which asks for a partially reliable topology that connects customers with different security requirements to a depot node by combined ring and tree graphs. While the CRTP aims at optimizing the...

binary decision diagram (bdd) is a data structure proved to be compact in representation and efficient in manipulation of boolean formulas. using binary decision diagram in network reliability analysis has already been investigated by some researchers. in this paper we show how an exact algorithm for network reliability can be improved and implemented efficiently by using cudd - colorado univer...

In Telecommunication networks, a high-performance and reliable management of alarm messages is more important than in traditional IP networks. TLC networks comprise up to thousands of heterogeneous Network Elements (NEs) and they generate high alarm traffic due to bad weather, correlated faults and logging activity. In this scenario, alarm messages have an extreme informative value and cannot b...

The recent technological advances in world wide web arena with hyper text capable browsers along with the widely available client-server technology has created a new approach to software development in the telecommunication network management industry. Traditionally, network capacity planning and delivery and network information technology software has been custom developed due to the nature of...