6[3]Janise McNair.Location Registration and Paging in Mobile Satellite Systems[A]Rifth IEEE Symposiurn on Computers and Communications[C].2000:232-237.
7[4]Ravi Jain,Yi-Bing Lin.An Auxiliary User Location Strategy Employing Forwarding Pointers to Reduce Network Impacts of PCS[J].Wireless Networks 1995(1),197-210.
8[5]C.-M.Weng and C.-H.Chu.K-step Pointer Forwarding Strategy for Location Tracking in Distributed HLR Environment[J].IEE Proc-Commun.2003,1(3):150.
9[6]LIN Y B.Reducing Location Update Cost in a PCS Network[J].IEEE/ACM Trans on Networking,1997.