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Formation of tracking areas (known as location areas in GSM systems) is a key function in mobility management in cellular networks. Optimal layout of tracking areas has to balance the amount of paging and registration signaling traffic required to collect and solicit user location information. From a network management perspective, a key concept in Long Term Evolution (LTE) is automatic reconfiguration. For tracking area formation, implementing the concept requires the management system’s ability of adapting the configuration to changes and trends in user distribution and mobility patters over time.
The research delivers new schemes for adaptive tracking area re-configuration to effectively deal with the system dynamics in cellular networks. Works are carried out along two lines. The first is the development of algorithms that are capable of re-optimizing tracking area configuration, and at the same time keeping the service interruption due to re-configuration within an acceptable level. The second line of research targets exploiting tracking area lists to go beyond the performance achievable by the conventional tracking area concept. Read More
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