Title :
An elastic handover scheme for LEO satellite mobile communication systems
Author :
Xu, Yi ; Ding, Quanlong ; Ko, ChiChung
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore
Abstract :
This paper proposes a new handover management scheme for low Earth orbit (LEO) satellite mobile communication systems-elastic channel locking (ECL) scheme. Based on the feature that the mobile terminal´s entry into and departure from a cell is predictable in LEO systems, this scheme provides a flexible way to control quality of service in terms of blocking probability and handover failure probability by adjusting the time to send out channel reservation request during the handover process. A mathematical model is established to analyze this scheme. To gain a comprehensive insight into this scheme, call incompletion probability is employed to evaluate the traffic capacity of a communication system. It is shown that ECL can maximize the channel utilization and enable the system to accommodate the most number of customers
Keywords :
cellular radio; channel capacity; mobile satellite communication; probability; quality of service; telecommunication traffic; LEO satellite mobile communication systems; LEO systems; QoS control; blocking probability; call incompletion probability; cellular radio; channel reservation request; channel utilization maximisation; communication system; elastic channel locking; elastic handover; handover failure probability; handover management; low Earth orbit; mathematical model; mobile terminal; quality of service; traffic capacity; Artificial satellites; Capacity planning; Communication system control; Communication system traffic; Control systems; Low earth orbit satellites; Mathematical model; Mobile communication; Quality of service; Traffic control;
Conference_Titel :
Global Telecommunications Conference, 2000. GLOBECOM '00. IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-6451-1
DOI :
10.1109/GLOCOM.2000.891319
