In this paper a location-based algorithm is proposed for managing soft mobile-controlled vertical handover between wireless systems. The case of a dual-mode terminal equipped with UMTS and IEEE 802.11 network interface cards is analyzed in detail, and an novel approach for optimizing goodput and limit the so-called ping-pong effect is defined. The novel algorithm is based on a preliminary handover initiation phase triggered on the basis of mobile node location. Handover is then carried out by following a goodput estimation phase allowed by a transient of by casting during soft handovers. Experimental results provide an assessment on the use of location information to drive handover decisions. © 2008 IEEE.
A location-based vertical handover algorithm for limitation of the ping-pong effect / T., Inzerilli; A. M., Vegni; A., Neri; Cusani, Roberto. - (2008), pp. 385-389. (Intervento presentato al convegno 4th IEEE International Conference on Wireless and Mobile Computing, Networking and Communication, WiMob 2008 tenutosi a Avignon; France nel 12 October 2008 through 14 October 2008) [10.1109/wimob.2008.64].
A location-based vertical handover algorithm for limitation of the ping-pong effect
CUSANI, Roberto
2008
Abstract
In this paper a location-based algorithm is proposed for managing soft mobile-controlled vertical handover between wireless systems. The case of a dual-mode terminal equipped with UMTS and IEEE 802.11 network interface cards is analyzed in detail, and an novel approach for optimizing goodput and limit the so-called ping-pong effect is defined. The novel algorithm is based on a preliminary handover initiation phase triggered on the basis of mobile node location. Handover is then carried out by following a goodput estimation phase allowed by a transient of by casting during soft handovers. Experimental results provide an assessment on the use of location information to drive handover decisions. © 2008 IEEE.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
