The rapid advances in telecommunication and Internet technologies is the driving force behind the emergence of a new generation of network-oriented multimedia applications such as Internet telephony and real time video applications. To successfully deploy these new applications, the communication networks should be QoS capable so that network resources such as bandwidth can be reserved during t...

Nowadays, mobile users can switch between different available networks, for example, nearby WiFi networks or their standard mobile operator network. Soon it will be extended to other operators. However, unless telecommunication operators can directly benefit from allowing a user to switch to another operator, operators have an incentive to keep their network quality of service confidential to a...

This thesis considers two NP-hard combinatorial optimization problems (COPs) from the domain of network design. Network design problems (NDPs) arise in a multitude of real world applications such as the design of telecommunication networks. The NDPs addressed in this thesis are suitable to model certain real-world scenarios occurring in the extension of communication networks on the last mile. ...

Every nation wants to achieve Universal Access of telecommunication services due to its importance to the economy and national life. Unfortunately in sub-Saharan Africa, telecommunication services are either scarce or non-existent in rural areas. However, previous telecommunication policies have enabled the provision of various network technologies in Africa. What type of policy is needed to pu...

The advent of Wireless Sensor Networks (WSNs) has inspired various sciences and telecommunication with its applications, there is a growing demand for robust methodologies that can ensure extended lifetime. nodes are small equipment which may hold less electrical energy preserve it until they reach the destination network. main concern supposed to carry out sensor routing process along transfer...

This paper introduces telecommunication services engineering through a definition of services, of network architectures that run services, and of methods, techniques and tools used to develop services. We emphasize the Intelligent Network (IN), the Telecommunication Management Network (TMN) and TINA architectures; we also discuss the impact of the Internet on these architectures.

Ad hoc networks are multi-hop wireless networks without a pre-installed infrastructure. Such networks are widely used in military applications and in emergency situations as they permit the establishment of a communication network at very short notice with a very low cost. Video is very sensitive for packet loss and wireless ad-hoc networks are error prone due to node mobility and weak links. H...

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