Optimization of wireless resources for personal communications mobility tracking
IEEE/ACM Transactions on Networking (TON)
Movement-based location update and selective paging for PCS networks
IEEE/ACM Transactions on Networking (TON)
Reducing location update cost in a PCS network
IEEE/ACM Transactions on Networking (TON)
Location update optimization in personal communication systems
Wireless Networks
Location management in cellular networks
Handbook of wireless networks and mobile computing
Theory, Volume 1, Queueing Systems
Theory, Volume 1, Queueing Systems
Advanced power management techniques in next-generation wireless networks
IEEE Communications Magazine
User mobility modeling and characterization of mobility patterns
IEEE Journal on Selected Areas in Communications
A caching strategy to reduce network impacts of PCS
IEEE Journal on Selected Areas in Communications
Computer Networks: The International Journal of Computer and Telecommunications Networking
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As mobile devices are becoming smaller and users are desiring a longer battery life, the advanced power conservation mechanism, the idle mode, which is an enhanced version of the legacy IEEE 802.16 system's idle mode, was proposed and adopted in IEEE 802.16m. Idle mode operation in IEEE 802.16m provides a lower location update overhead as well as a more efficient multiple paging-group operation compared to the legacy idle mode operation. However, there is a tradeoff between paging and location update overhead in the multiple paging-group operation. To address this issue, the paging-group location update timer (PG_LU_TIMER) was adopted in IEEE 802.16m. However, the manner in which this parameter balances the paging overhead and the location update overhead and the optimal value of the parameter are outside the scope of the IEEE 802.16m standard description. The main contribution of this paper is validation and further optimization of the joint paging area and location update proposed in the IEEE 802.16m air interface through analytical modeling and simulation of multiple paging-group operation with the PG_LU_TIMER. Our simulation results show that the PG_LU_TIMER can jointly reduce the location update overhead and paging overhead by up to 80.3% and 82.3% respectively. Furthermore our analysis shows that the proposed location update mechanism can save up to 640@mJ of energy compared to the legacy idle mode location update model.