The stream of qualified data in telecommunication networks requires the interaction of the different network layers. These network layers collaborate with one another in a nontrivial way to uphold qualified information exchange between the sender junction and appropriating junction. In a mobile ad hoc system, where there are fast topology up-dates due to mobility of junctions and channel fading...

Main problems of mobile computing are connections setbacks, bandwidth, heterogeneous webs and bottleneck issues. With the advent of the Internet and the plurality and collection of elaborate requests it held alongside it, the demand for extra elevated services on cellular phones is increasingly becoming urgent. Unfortunately, the new enabling technologies did not prosper in boosting new service...

Currently, users identify wireless networks with firstand second-generation cellular telephony networks. Although voice and short messaging have driven the success of these networks so far, data and more sophisticated applications are emerging as the future driving forces for the extensive deployment of new wireless technologies. In this chapter, we will consider future wireless technologies th...

Telecommunication switches implement overload controls to maintain call throughput and delay at acceptable levels during periods of high load. Existing work has mostly focused on controls under sustained overload–they do not meet the demands of modern telecommunication systems where the increased number of services and mobile subscribers often creates fast changing hot spots. We introduce new a...

Kurzfassung: Reverse and reengineering of large and complex software systems is a difficult task. As a result, many methods and tools for reverse and reengineering have been developed so far. However, the work in this field has concentrated on sequential, and untimed systems, mainly for business applications. The majority of the approaches deals with decomposing monolithic systems, decoupling u...

– The last few years have seen the evolution of telecommunications from the classic architectures, mainly based on static and wired structures, to the new mobile solutions based on wireless technologies. This trend has led, on the one side, to the definition of the third–generation mobile telecommunication systems and, on the other, to the development of personal area networks. The standards th...

This paper describes the Adaptive Multirate Wideband (AMR-WB) speech codec recently selected by the Third Generation Partnership Project (3GPP) for GSM and the third generation mobile communication WCDMA system for providing wideband speech services. The AMR-WB speech codec algorithm was selected in December 2000 and the corresponding specifications were approved in March 2001. The AMR-WB codec...