By Hossam Afifi, Djamal Zeghlache
Fresh advancements to instant networks convey with them the questions of carrier bargains, provider administration, provider regulate, and caliber of carrier which are tested during this choice of views on rising instant applied sciences.
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Extra resources for Applications & Services in Wireless Networks
The latter scenario is applicable for dealing with the security issue of identifying snoopers. 3 Security comparison The authentication mechanisms used within the different IM and Presence protocols vary: • SIP: Rather than a specific authentication mechanism being mandated, SIP allows for several possible alternate mechanisms. These include (1) Basic authentication (2) Digest authentication (3) PGP-based (digital signature) authentication. • PRIM: PRIM uses SASL for authentication. The authentication is based on a challenge-response mechanism.
This is done through a Mobile IPv6 as a data protocol for UMTS IP IP IP RRC RRC RLC RLC MAC MAC UTRAN UTRAN terminal RANAP SS7 RNC IP RANAP GTP-r 41 IP GTP-r MAP SS7 SGSN GGSN HLR Figure 1. GPRS control architecture second procedure known as the ACTIVATE procedure. This implies that the GGSN attributes an address to the terminal. It also implies the presence of a data tunnel from the external world, through the GGSN, the SGSN and the RNC to the mobile terminal. When moving from a domain to a new domain, the terminal simply sends a routing update to inform the SGSN.
ROS 0301] ROSENBERG J. et. al, “SIP Extensions for Presence”, draft-ietf-simplepresence-00 (work in progress), March 2001. [SUG 01] SUGANO, H. et. al, “Presence and Instant Messaging Protocol (PRIM)”, draftmazzoldi-prim-impp-01 (work in progress), March 2001. html Chapter 4 QoS provisioning for mobile IP users Günther Stattenberger and Torsten Braun Institute of Computer Science and Applied Mathematics, University of Bern, Switzerland 1. Introduction The scenario presented in this document will prove the ability of a Bandwidth Broker (BB) using the QoS Management API [STA 01b] to provide Differentiated Services to a Mobile IP User.
Applications & Services in Wireless Networks by Hossam Afifi, Djamal Zeghlache