@conference { ISI:000371484600022,
	title = {Efficient Vertical handover scheme on IMS network and cost analysis},
	booktitle = {2014 THIRD IEEE INTERNATIONAL COLLOQUIUM IN INFORMATION SCIENCE AND TECHNOLOGY (CIST{\textquoteright}14)},
	series = {Colloquium in Information Science and Technology},
	year = {2014},
	note = {3rd IEEE International Colloquium on Information Science and Technology (CIST), Tetouan, MOROCCO, OCT 20-22, 2014},
	pages = {129-134},
	publisher = {IEEE; IEEE Comp Soc; IEEE Commun Soc; IEEE Morocco Sect; IEEE Morocco Comp \& Commun Joint Chapter; UAE IEEE Student Branch; Univ Abdelmalek Essaadi; ENSA Tetouan},
	organization = {IEEE; IEEE Comp Soc; IEEE Commun Soc; IEEE Morocco Sect; IEEE Morocco Comp \& Commun Joint Chapter; UAE IEEE Student Branch; Univ Abdelmalek Essaadi; ENSA Tetouan},
	abstract = {According to the various mobility, the resource allocation, interference, and the characteristics of heterogeneity and ubiquity of access network based on the next generation network, namely, the network IMS (IP Multimedia subsystem), have imposed several challenges. In regard to mobility management, handover management, and Quality of Service (QoS) provisioning, this paper proposes an adaptive environment based on IMS, between the heterogeneous access technologies, like WiMAX, WLAN, UMTS and LTE/LTE Advanced interfaces. Nevertheless, especially, the problem of handover decision, as resolving it influence, mainly on the handover performance; ANN(Artificial Neural Network) is proposed to solve the problem of decision and selection of best network access based IMS. The objective of proposed approach algorithms, is to maximize handover performance and reliability, with a new generic mobility management architecture, for system resource utilization by reducing handover latency and achieving load balance between different heterogeneous cells and networks},
	isbn = {978-1-4799-5979-2},
	issn = {2327-185X},
	author = {Allouch, Hamid and Belkasmi, Mostafa},
	editor = {ElMohajir, M and AlAchhab, M and Chahhou, M}
}
@conference { ISI:000325229700053,
	title = {Design of distributed IMS by classification and evaluation of costs for secured architecture},
	booktitle = {2012 SECOND INTERNATIONAL CONFERENCE ON INNOVATIVE COMPUTING TECHNOLOGY (INTECH)},
	year = {2012},
	note = {2nd International Conference on Innovative Computing Technology (INTECH), Casablanca, MOROCCO, SEP 18-20, 2012},
	pages = {291-296},
	publisher = {IEEE UK \& RI Consumer Elect Chapter; IEEE Broadcast Technol Chapter; IEEE},
	organization = {IEEE UK \& RI Consumer Elect Chapter; IEEE Broadcast Technol Chapter; IEEE},
	abstract = {The core of Next Generation Network(NGN) IP Multimedia subsystem(IMS) based on SIP as mechanism signaling, is an important challenge for supporting data communication services, voice, video, messaging and web-based technologies. In this work we present a novel design of architecture and turns up some challenges of new IMS architecture and security system. This architecture provides a robustness, reliability, scalability and strategy for extension in the future and responds to the security challenges. We introduced the architecture with clustering database HSS and automatic storage of data that give a secure database. This paper give a classification of security in IMS network, modulate the risk in IMS network and our comparison is giving by cost signaling interworking with and without securing Gateway (SEG). We show that there is a tradeoff between the level of increasing system security and the potential cost incurred. we conclude that this architecture is suitable for operators and services providers for the new business models.},
	isbn = {978-1-4673-2679-7},
	author = {Allouch, Hamid and Belkasmi, Mostafa}
}
