Title :
Performance evaluation of prioritized handover management for LEO mobile satellite systems with dynamic channel assignment
Author :
Obradovic, Vladimir ; Cigoj, Sascha
Author_Institution :
Commun. Networks, Aachen Univ. of Technol., Germany
Abstract :
This paper presents a handover prioritization scheme based on the usage of guard transceivers in capacity limited low-Earth-orbit (LEO) mobile satellite systems with dynamic channel assignment (DCA). Simulation tests were carried out in order to evaluate the performance of this scheme. The results show that, in the LEO satellite systems with non-uniform traffic the system performance parameters such as call blocking, handover failure and grade of service (GoS) are significantly better by DCA than by the fixed channel assignment (FCA) strategy. Another achievement is the improvement of the handover blocking probability and GoS by systems using guard transceivers for prioritized handover attempts. The most efficient percentage of the channels reserved for handover has been determined
Keywords :
cellular radio; channel allocation; channel capacity; mobile satellite communication; probability; quality of service; telecommunication network management; transceivers; GoS; LEO mobile satellite systems; call blocking; capacity limited system; cellular radio; channel reservation; dynamic channel assignment; fixed channel assignment; grade of service; guard transceivers; handover blocking probability; handover failure; low Earth orbit; mobile communication services; nonuniform traffic; performance evaluation; performance parameters; prioritized handover management; simulation tests; Artificial satellites; Communication networks; Electronic mail; Low earth orbit satellites; Quality of service; Satellite broadcasting; System performance; Testing; Traffic control; Transceivers;
Conference_Titel :
Global Telecommunications Conference, 1999. GLOBECOM '99
Conference_Location :
Rio de Janeireo
Print_ISBN :
0-7803-5796-5
DOI :
10.1109/GLOCOM.1999.831652
