A New Call Admission Control Scheme for Heterogeneous Wireless Networks

Published

October 31, 2010

Author(s)

Duk Kyung Kim, David W. Griffith, Nada T. Golmie

Abstract

Call admission control between heterogeneous networks,such as an integrated 3GPP LTE and WLAN network, plays an important role to utilize the system resources in a more efficient way. In this paper, we propose that the preference to the WLAN is determined based on the traffic load in the WLAN and the location of the cellular users. Our analysis relies on previous work that divides the 3G cellular coverage area into zones based on the amount of resources that are required to support a connection to a mobile user. Using this model, we derive new call blocking and handoff failure probabilities as well as new call and handoff attempt failure probabilities. Through simulations, we investigate proper preference setttings by changing the WLAN load in a 3 ring-based sector cell with a WLAN hotspot.

Citation

IEEE Transactions on Wireless Communications

Volume

9

Issue

10

Pub Type

Journals

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Keywords

CAC, Vertical handoffs, Heterogeneous networks, Ring-based model

Citation

, D. , Griffith, D. and Golmie, N. (2010), A New Call Admission Control Scheme for Heterogeneous Wireless Networks, IEEE Transactions on Wireless Communications, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=904690 (Accessed October 10, 2025)