P-HIP: Paging Extensions for Host Identity Protocol

In wireless networks, paging is widely used to reduce the signaling cost of the location management and save power consumption. Currently, Host Identity Protocol (HIP) does not support paging. In this paper, we propose P-HIP, paging extensions for HIP, and discuss the paging architecture, protocol, algorithm, and location management scheme. In addition, we develop an analytical model encompassing the arbitrary subnet technology and the mobile network movement history to study the performance of HIP with and without paging extensions. The performance results show that P-HIP outperforms HIP under various scenarios in terms of reducing the total signaling cost.