Title :
One-Hop Call Admission Control in Heterogeneous Wireless Networks: A Queueing Analysis
Author :
Ouyang, Wenzhuo ; Fu, Luoyi ; Wang, Xinbing ; Hossain, Ekram
Author_Institution :
Dept. of Electron. Eng., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
In a heterogeneous wireless network, where many different wireless networks interwork together, call admission control is an important issue to distribute user traffic among different access networks in order to provide quality of service (QoS). In this paper, we present and analyze the performance of a call admission control (CAC) policy for voice and data calls, which is based on one-hop cooperation among the mobile nodes, in a cellular-WLAN interworking scenario. For call-level queueing analysis of the CAC scheme, we use a more general phase-type distribution to model the characteristics of the system. Based on the analytical model, we illustrate the effect of one-hop cooperation on call-level QoS performance (e.g., call blocking probability, call dropping probability).
Keywords :
cellular radio; quality of service; queueing theory; radio access networks; radio networks; telecommunication congestion control; telecommunication traffic; wireless LAN; access networks; call blocking probability; call dropping probability; call-level QoS performance; call-level queueing analysis; cellular-WLAN interworking scenario; general phase-type distribution; heterogeneous wireless networks; mobile nodes; one-hop call admission control; quality of service; user traffic; Call admission control; Communication system traffic control; Land mobile radio cellular systems; Performance analysis; Quality of service; Queueing analysis; Relays; Traffic control; Wireless LAN; Wireless networks;
Conference_Titel :
Global Telecommunications Conference, 2009. GLOBECOM 2009. IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-4148-8
DOI :
10.1109/GLOCOM.2009.5425521
