Tracking highly mobile users using replicated databases

✍ Scribed by S Makki

• Book ID: 104273546
• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 164 KB
• Volume: 23
• Category: Article
• ISSN: 0140-3664
• DOI: 10.1016/s0140-3664(00)00174-2

✦ Synopsis

Data replication in wireless environment enhance network performance, availability and reliability. As wireless communication systems are organised the serviced area into cells or zones, where each cell is serviced by a base station which is located at the centre of a cell. The interface to the wired network is achieved through wired links which connect the base stations to the mobile switching centres attached to the wired network. The mobile users are assigned to a centre according to their geographical location and can communicate with a base station via the wireless channels. The information regarding a user's location is replicated at each centre to improve access delay for routing a call, however this replication causes problems in updating databases. We present a new approach for updating these replicated databases and tracking the mobile users in a wireless environment.