Unlike in the U.S. where the FCC moved the industry from one standard to multiple competing digital standards, Europe started with five standards and winnowed them down to one with the overall goal of seamless roaming from country to country.
However, different interworking architectures provide different service qualities for data access and different levels for the seamless roaming.
JAKARTA (Reuters) - The launch in India of a new BlackBerry by Research In Motion Ltd is not just a nod to its lower-end users who love it less for its security, push email and seamless roaming than for its simplicity and its Messaging.
The Wireless access via wireless fidelity (Wi-Fi) is a fast growing enterprise technology with companies and public institutions across the globe investing to provide indoor and outdoor coverage with seamless roaming for voice, video, and data applications.
Although, several IPv6-based mobility protocols as well as interworking architectures have been proposed in the literature, they cannot guarantee seamless roaming, especially for real-time applications.
Cellular networks are high-speed, high-capacity voice and data communication networks with enhanced multimedia and seamless roaming capabilities for supporting cellular devices.
For this purpose, Mobile IP (MIP), which enables seamless roaming, is the main engine for location management.
This paper proposes a one suite integration solution that includes a Hybrid Interworking Architecture (HIA) for metropolitan networks coupled with a cross layer mobility scheme that aims to guarantee seamless roaming through homogeneous and heterogeneous mobile systems within a city coverage.
Mobility management, integration and interworking of existing wireless systems are important factors to obtain seamless roaming and services continuity in next generation or 4G wireless networks (NGWN/4G).
To provide seamless roaming between a subnet in a hotspot and to track the position of the mobile client is the main objective of this paper.
