Title :
Predictive distance-based mobility management for PCS networks
Author :
Liang, Ben ; Haas, Zygmunt J.
Author_Institution :
Sch. of Electr. Eng., Cornell Univ., Ithaca, NY, USA
Abstract :
This paper presents a mobile tracking scheme that exploits the predictability of user mobility patterns in wireless PCS networks. Instead of the constant velocity fluid-flow or the random-walk mobility model, a more realistic Gauss-Markov model is introduced, where a mobile´s velocity is correlated in time to a various degree. Based on the Gauss-Markov model, a mobile´s future location is predicted by the network based on the information gathered from the mobile´s last report of location and velocity. When a call is made, the network pages the destination mobile at and around the predicted location of the mobile and in the order of descending probability until the mobile is found. A mobile shares the same prediction information with the network and reports its new location whenever it reaches some threshold distance away from the predicted location. We describe an analytical framework to evaluate the cost of mobility management for the proposed predictive distance-based scheme. We then compare this cost against that of the regular, non-predictive distance-based scheme, which is obtained through simulations. Performance advantage of the proposed scheme is demonstrated under various mobility and call patterns, update cost, page cost, and frequencies of mobile location inspections
Keywords :
Gaussian processes; Markov processes; cellular radio; personal communication networks; prediction theory; probability; radio tracking; telecommunication network management; GSM; Gauss-Markov model; call patterns; correlation; destination mobile; future location prediction; mobile location inspection frequency; mobile tracking; mobile velocity; mobility management cost; network paging; nonpredictive distance-based scheme; page cost; performance; predictive distance-based mobility management; probability; simulations; threshold distance; update cost; user mobility patterns; wireless PCS networks; Communication standards; Costs; Frequency; Gaussian processes; Inspection; Mobile radio mobility management; North America; Personal communication networks; Telecommunication traffic; Wireless communication;
Conference_Titel :
INFOCOM '99. Eighteenth Annual Joint Conference of the IEEE Computer and Communications Societies. Proceedings. IEEE
Conference_Location :
New York, NY
Print_ISBN :
0-7803-5417-6
DOI :
10.1109/INFCOM.1999.752157