Paper Info
Title
A vertical handoff decision process and algorithm based on context information in CDMA-WLAN interworking
Abstract
The integration of WLANs and CDMA networks has recently evolved into a very hot issue. In order to support a vertical handoff, we propose a context based vertical handoff decision process and the corresponding algorithms from WLAN to CDMA system, and vice versa, based on wireless channel assignment. We focuses on the handoff decision which uses context information such as dropping probability, blocking probability, GoS (Grade of Service), the number of handoff attempts and velocity. As a decision criterion, velocity threshold is determined to optimize the system performance. The optimal velocity threshold is adjusted to assign available channels to the mobile stations with various handoff strategies. The proposed scheme is validated using computer simulation. Also, the overflow traffic (a vertical handoff) is evaluated and compared with non-overflow traffics in terms of GoS.
Year
DOI
Venue
2005
10.1007/11428848_78
International Conference on Computational Science (2)
Keywords
Field
DocType
cdma-wlan interworking,decision criterion,handoff attempt,cdma network,velocity threshold,optimal velocity threshold,vertical handoff decision process,context information,vertical handoff,handoff decision,cdma system,various handoff strategy,grade of service,computer simulation,mobile station,system performance
Wireless,Mobile station,Computer science,Algorithm,Communication channel,Real-time computing,Code division multiple access,Channel allocation schemes,Handover,Network interface,Grade of service
Conference
Volume
ISSN
ISBN
3515
0302-9743
3-540-26043-9
Citations 
PageRank 
References 
2
0.39
4
Authors
3
Name
Order
Citations
PageRank
Jang-Sub Kim113313.04
Min-Young Chung221.06
Dong-Ryeol Shin312427.03