We survey different optimization problems under uncertainty which arise in telecommunications. Three levels of decisions are distinguished: design of structural elements of telecommunication networks, top level design of telecommunication networks and design of optimal policies of telecommunication enterprize. Examples of typical problems from each level show that the stochastic programming par...

Next generations of mobile telecommunication have to provide not only the voice or message services but also a wide set of new applications coming from the Internet world. Because of fading wireless channel and limited bandwidth, the problem of resource and power allocation has become of prime importance for stability and effectiveness of future mobile communication systems. In this paper we st...

Telecommunication tower is an important component of the basic infrastructure of communication systems and thus preserving them in events of natural disasters - such as a severe earthquake - is of high priority. In past studies, researchers have mostly considered the effects of wind and earthquake-induced loads on 3-legged (triangular cross-section) self-supporting steel telecommunication tower...

According to current models of word recognition, the time to recognize a word would be affected by the frequency of its neighbors. The present study examined the role of neighborhood frequency in spoken word recognition, using a definition of the neighborhood in terms of the last candidates of the cohort aligned from onset with the input [8]. Two sets of disyllabic CVCV words were selected whic...

1 Loss System For a background review, I started the summer vacation scholorship by looking at loss systems. In a telecommunication context, this means that a new coming call is blocked (or lost) if there is no free circuits for that call. First of all, I made myself familiar with the notations. In a loss system, let C be the total number of circuits available, n be the number of circuits in us...

Computer and telecommunication technologies have led to the development of modern mass media made significant competition with print edition (newspapers, magazines, books), dominance telecracy, etc. The gone a path from channel information entertainment political institution, significantly increasing their capabilities as an in- strument influencing public consciousness. study?s main purpose is...

We report on the realization of a novel fiber-optic radio frequency (RF) transfer scheme with bidirectional division multiplexing (FDM) dissemination technique. Here, proper map used in forward and backward directions for suppressing backscattering noise ensuring symmetry RF signals within one telecommunication channel. experimentally demonstrated 0.9 GHz signal over 120 km optical link relativ...

The growing number of unauthorized activities and various trends of networking technologies in telecommunication network have added heavy burdens to telecommunication performance management (PM) system. One-class-support vector machine (OCSVM) is introduced in this paper, to automatically detect network anomalies. Real telecommunication performance data are employed in this paper to investigate...