Title :
Local and global handovers for mobility management in wireless ATM networks
Author :
Marsan, Marco Ajmone ; Chiasserini, Carla-Fabiana ; Cigno, Renato Lo ; Munafò, Maurizio ; Fumagalli, Andrea
Author_Institution :
Politecnico di Torino, Italy
fDate :
10/1/1997 12:00:00 AM
Abstract :
This article deals with the problem of virtual circuit (VC) management in wireless ATM (W-ATM) networks with mobile user terminals. In W-ATM networks, a VC terminating at a mobile user may require dynamic reestablishment during the short time span necessary for terminal handover due to its movement from one (macro)cell to another. The VC reestablishment procedure has to ensure in-sequence and loss-free delivery of the ATM cells containing user data. After a classification of the solutions proposed so far in the literature, a novel technique for the dynamic reestablishment of VCs in W-ATM networks is described, and its performance is evaluated through simulation. The proposed technique allows for a progressive upgrade of the fixed part of the ATM network and for the incremental introduction of user terminal mobility
Keywords :
asynchronous transfer mode; buffer storage; cellular radio; data communication; land mobile radio; packet radio networks; telecommunication network management; telecommunication signalling; ATM cells; buffer requirements; cellular radio; dynamic reestablishment; global handover; in-band signalling; in-sequence delivery; local handover; loss free delivery; mobile user terminals; mobility management; performance evaluation; simulation; terminal handover; user data; virtual circuit management; wireless ATM networks; Access protocols; Asynchronous transfer mode; Communication switching; Intelligent networks; Macrocell networks; Microcell networks; Mobile radio mobility management; Radio control; Switches; Virtual colonoscopy;
Journal_Title :
Personal Communications, IEEE
