Abstract
This paper studies failure restoration of mobility databases for personal communication networks (specifically, VLRs and HLRs). We model the VLR restoration with and without checkpointing. The optimal VLR checkpointing interval is derived to balance the checkpointing cost against the paging cost. We also model GSM periodic location updating (location confirmation) to quantify the relationship between the location confirmation frequency and the number of lost calls. The HLR failure restoration procedures for IS-41 and GSM are described. We show the number of lost calls in a HLR failure. Both the procedures in IS-41 and GSM cannot identify the VLRs that need to be accessed by the HLR after a failure. An algorithm is proposed to identify the VLRs, which can be used to aggressively restore a HLR after its failure.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
EIA/TIA, Cellular radio-telecommunications intersystem operations: Automatic roaming, Technical Report IS-41.3-B, EIA/TIA (1991).
ETSI/TC, Restoration Procedures, Version, 4.2.0, Technical Report Recommendation GSM 03.07, ETSI (1993).
J. Medhi,Stochastic Models in Queueing Theory (Academic Press, 1991).
Y.-B. Lin, Database failure recovery for cellular phone networks, Submitted for publication.
Y.-B. Lin and W. Chen, Impact of busy lines and mobility on cell blocking in a PCS network,ICCCN'94(1994) pp. 343–347.
A.R. Noerpel, L.F. Chang and Y.-B. Lin, Performance modeling of polling de-registration for unlicensed PCS, Submitted to IEEE J. SAC.
S.M. Ross,Stochastic Processes (Wiley, 1983).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Lin, YB. Failure restoration of mobility databases for personal communication networks. Wireless Netw 1, 365–372 (1995). https://doi.org/10.1007/BF01200853
Issue Date:
DOI: https://doi.org/10.1007/BF01200853