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One of the considerable use cases for network functions virtualization (NFV) is the IP multimedia subsystem (IMS). With the emergence of software defined network (SDN) and NFV, the mobile network operators (MNOs) that are deploying the IMS look to make a gain from these leading technologies to mitigate hardware costs and reduce time to market. With the use especially of the NFV approach, the MNO looks...
Knowing the crucial importance of a service selection, and given the competition between service providers, considerable opportunities are offered for customers to find the best telco service with best pricing. However it took time for customers to manage and analyze the different service data to make the right decision because of the expansion of service providers' infrastructures towards networks...
The mobile network operators (MNOs) that are deploying the IP Multimedia Subsystem (IMS) experience rapid growth of mobile contents and mobile subscribers' requests. Consequently, system performance could be affected and the management of different types of content resources gets expensive and gradually harder. In fact, with the emergence of the big data technology, MNOs must think of making the most...
The success of telecom operators is based on several criteria including but not limited to the diversity of services. The competition between operators is needed to improve and ensure customers loyalty by providing interesting services. For this purpose IP Multimedia Subsystem (IMS) has been a major work effort of the 3GPP (3rd Generation Partnership Project) standards bodies for several years now...
The outstanding advances in computing as well as the explosion of devices and services requirements are making communication mobile networking more and more complex to manage. In addition, multimedia services such as provided by the IP Multimedia Subsystem (IMS) require a dynamic Quality of Service (QoS) management. However, traditional Long Term Evolution (LTE) networking approaches have become too...
All real-time services provided by the IP Multimedia Subsystem (IMS) require QoS mechanisms to avoid traffic congestion. Recently, the Software Defined Networking (SDN) paradigm has emerged to enable dynamic network resources, and then a way to perform QoS management. The paper presents an approach to integrate the IMS with the SDN paradigm. The work is motivated by the lack of QoS management of real-time...
Because of the rapid growth of the number of mobile user requests and media files on demand, system performance could be negatively impacted and the management of different sorts of media files becomes costly and increasingly difficult. In this article we propose an innovative architecture combining the IP Multimedia Subsystem (IMS) platform and the Hadoop system for use in the distributed storage...
The world of telecommunications is undergoing a rapid change in designing and developing applications. Telecom operators are becoming increasingly forced to diversify the portfolio of available services to ensure customer loyalty. Indeed the operator's business has far exceeded the supply of traditional telephony to open up to the most demanding services. For this purpose IP Multimedia Subsystem (IMS)...
Securing service and signalization is an important aspect in the IMS network (IP Multimedia Subsystem). The signaling is based mainly on SIP protocol (Session Initialization Protocol). This protocol presents several challenges in terms of security which induce security problems in IMS network. The paper presents an analysis of SIP protocol and identifies the critical security weaknesses during registration...
The next generation network requires a suitable QoS that can increase number of users and revenues. The IMS (IP Multimedia Subsystem) import new taxation strategy flow based and QoS management policy-based. The QoS management poses a competition in terms of limitations of physical resources and the onset of congestion, which encourages more organisaton to look for management solutions other than DiffServ...
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