A new signaling protocol for intersystem roaming in next-generation wireless systems

Abstract

In next-generation wireless systems, one of the major features that is different from the current personal communication service systems is the seamless global roaming. The mobile subscribers will be allowed to move freely across different networks while maintaining their quality of service for a variety of applications. To meet this demand, the signaling protocol of mobility management must be designed, supporting location registration and call delivery for roaming users who move beyond their home network. In this paper, a new signaling protocol is proposed, emphasizing the active location registration for ongoing services during the mobile subscribers' movement. Another important goal of this new protocol is to reduce the overhead caused by mobility management so that the signaling traffic load and consumption of network resources can be reduced. The new protocol efficiently reduces the latency of call delivery and call loss rate due to crossing wireless systems with different standards or signaling protocols. The numerical results reveal that the proposed protocol is effective in improving the overall system performance.

Analytical Approach of Proxy-LMA Mobility System in Heterogeneous IP-based Mobile Networks

“…The mobility management technique, proposed in this paper, can be largely divided into location management and handoff management based on the entity on each network [6,7]. Generally, handoff management is defined to be the technology that enables the undisrupted service of the application hierarchy being used in the movement by the MN between the location section (or cell or domain) [9].…”

“…3 shows an example of interconnection for the 3 subsystem networks. The mobility management technique proposed in this paper can be largely divided into location management and handoff management based on each network entity [6,7]. For PMIPv6, the entity on the network, not the MN, is responsible for location management.…”

Security and Privacy in VANET to reduce Authentication Overhead for Rapid Roaming Networks

“…RADIUS based roaming and AAA architecture has been widely used for inter-operation between WLAN networks [10,11] and also for inter-operation between a cellular network and WLANs [12,5]. Further investigations show that the procedure impacts performance by introducing delays ranging from 2 to 7 seconds depending on roaming scenarios and network security configuration.…”

Privacy-Preserving Quick Authentication in Fast Roaming Networks

“…RADIUS based roaming and AAA architecture has been widely used for inter-operation between WLAN networks [29,5] and also for inter-operation between a cellular network and WLANs [2,20]. In general, with either a web-based or a SIM-based AAA procedure, the number of message exchanges will count to 14 to 17, which involve AP point, RADIUS client and server at the visited network and at the home networks.…”