標題: A utility function-based access selection method for heterogeneous WCDMA and WLAN networks
作者: Chen, Yung-Han
Yang, Nuan-Yu
Chang, Chung-Ju
Ren, Fang-Ching
電信工程研究所
Institute of Communications Engineering
公開日期: 2007
摘要: WCDMA/WLAN interworking networks are considered to support high-data-rate multimedia services and high mobility. In this paper, we propose a utility function-based access selection method (UFAS) to determine which cell is most suitable for a mobile node's service request in heterogeneous WCDMA and WLAN networks. The UFAS method contains three parts, cells classification, utility function computation, and target cell determination. This utility function is composed of four evaluation functions, and is designed with a balancing index which can reduce the utility value of a cell if the cell is heavily loaded. Simulation results show that the UFAS method achieves larger system throughput than a policy-enabled (PE) handoff decision method [8]. Moreover, the UFAS method can reduce handoff occurrence rates and strike a balance between system utilization and cell loading while maintaining QoS requirements.
URI: http://hdl.handle.net/11536/10911
ISBN: 978-1-4244-1143-6
期刊: 2007 IEEE 18TH INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, VOLS 1-9
起始頁: 2557
結束頁: 2561
Appears in Collections:Conferences Paper