**6. References**

46 Telecommunications Networks – Current Status and Future Trends

Fig. 15. 3G Traffic multifractal analysis – Singularity Spectrum (milliseconds time scale).

Fig. 16. 3G Traffic multifractal analysis – Hölder function. (milliseconds time scale).

This chapter presented an approach and a set of frameworks to characterize traffic and optimize network planning in IP and 3G networks. Based on real traffic measurements, we

**5. Conclusion** 


IP and 3G Bandwidth Management Strategies Applied to Capacity Planning 49

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**3** 

*3IT Sud Paris, Evry,* 

 *1,2Morroco 3France* 

**eTOM-Conformant IMS Assurance Management** 

QoS management(Raouyane B. et al., 2009) mechanisms as defined by 3GPP can be viewed as a network-centric approach to QoS, providing a signalling chain able to automatically configure the network to provision determined QoS to services on demand and in real time, for instance on top of a DiffServ-enabled network. However, to envision a deployment of such technology in a carrier-grade context would mean significant further effort. In particular, premium paid-for services with SLA (Service Level Agreement) contracts such as targeted by IMS (Poikselka and Georg, 2009)networks would require additional mechanisms able to provide some degree of monitoring in order to asset the SLAs, while

The eTOM (enhanced Telecom Operations Map) (Creaner and Reilly, 2005) functional framework is a widespread reference used to model and analyze networks and services activity. From an eTOM point of view, one could argue that IMS does indeed cover the Fulfilment part of service management, but lacks any means to carry out service Assurance. The eTOM framework proposes a complete set of hierarchically layered processes describing all operator activities in a standard way. It is furthermore sustained by a parallel specification of a standard information model, the SID (Shared Information Data) (TMF GB926 Release 4, 2004). It has to be noted however that both tools, the eTOM and the SID, are generic. Also, the eTOM has been designed at times when Services were viewed as centrally controlled and managed, whereas the IMS is really a distributed layer network.

The work presented in this contribution is an attempt to achieve Assurance functionality for QoS-enhanced IMS services following strictly the eTOM specification, thus filling the functional gap as analyzed earlier; furthermore, two architectures are proposed to be

The composition of the supply chain in NGN network is classically described with three layers. The access layer provides IP (v4 or v6) connectivity regardless of the access technologies (Wireless or Wire-line). The service layer therefore supports technology-agnostic

**1. Introduction** 

IMS by itself does not provide such mechanisms.

compared: a centralized one and a distributed one.

**2. IMS and service provisioning** 

M. Bellafkih1, B. Raouyane1,2 , D. Ranc3, M. Errais1,2 and M. Ramdani2

*1Institut National des Postes et Télécommunications, Rabat,* 

*2Faculté des Sciences et Techniques, Mohammedia,* 

PACRIM 1987-1997 - Networking the Pacific Rimapos;. 1997 IEEE Pacific Rim Conference on Volume 2, Issue , 20-22 Aug 1997 Page(s):883 - 886 vol.2

Zukerman, M.; Neame, T. D.; Addie, R. G. (2003). "Internet Traffic Modeling and Future Technology Implications" Proceedings of Infocom, 2003.
