Title :
Sequential paging of mobile users in GSM cellular networks-a POMDP approach
Author :
Krishnamurthy, Vikram ; Singh, Sumeetpal
Author_Institution :
Dept. of Electr. & Electron. Eng., Melbourne Univ., Parkville, Vic., Australia
fDate :
6/22/1905 12:00:00 AM
Abstract :
The task of polling a roaming mobile user in a cellular network to determine its location is known as paging and it requires the use of limited wireless resources. Current cellular mobile communication systems use a broadcast (blanket) paging strategy where all the cells in a location area are polled for the mobile station. This is wasteful in resources due to increased signalling load. We formulate the paging problem as an optimal search problem and derive efficient sequential paging strategies for roaming mobile users. Using the theory of partially observed Markov decision processes (POMDP) we design a smart distributor which sequentially pages roaming mobile users to minimise signalling load
Keywords :
Markov processes; cellular radio; decision theory; optimisation; paging communication; personal communication networks; search problems; telecommunication signalling; GSM cellular networks; PCS; POMDP approach; blanket paging; broadcast paging; location determination; mobile station; mobile users; optimal search problem; partially observed Markov decision processes; personal communication services; polling; roaming mobile user; sequential paging; signalling load minimisation; smart distributor; Broadcasting; GSM; Land mobile radio cellular systems; Mobile communication; Paging strategies; Process design; Roaming; Search problems; Signal design; Signal processing;
Conference_Titel :
Global Telecommunications Conference, 2000. GLOBECOM '00. IEEE
Print_ISBN :
0-7803-6451-1
DOI :
10.1109/GLOCOM.2000.891746
