Title
Handoff Triggering and Network Selection Algorithms for Load-Balancing Handoff in CDMA-WLAN Integrated Networks
Abstract
This paper proposes a novel vertical handoff algorithm between WLAN and CDMA networks to enable the integration of these networks. The proposed vertical handoff algorithm assumes a handoff decision process (handoff triggering and network selection). The handoff trigger is decided based on the received signal strength (RSS). To reduce the likelihood of unnecessary false handoffs, the distance criterion is also considered. As a network selection mechanism, based on the wireless channel assignment algorithm, this paper proposes a context-based network selection algorithm and the corresponding communication algorithms between WLAN and CDMA networks. This paper focuses on a handoff triggering criterion which uses both the RSS and distance information, and a network selection method which uses context information such as the dropping probability, blocking probability, GoS (grade of service), and number of handoff attempts. As a decision making criterion, the velocity threshold is determined to optimize the system performance. The optimal velocity threshold is adjusted to assign the available channels to the mobile stations. The optimal velocity threshold is adjusted to assign the available channels to the mobile stations using four handoff strategies. The four handoff strategies are evaluated and compared with each other in terms of GOS. Finally, the proposed scheme is validated by computer simulations.
Year
DOI
Venue
2008
10.1155/2008/136939
EURASIP J. Wireless Comm. and Networking
Keywords
Field
DocType
load balance
Wireless,Computer science,Load balancing (computing),Mobile station,Selection algorithm,Computer network,Algorithm,Communication channel,Real-time computing,Code division multiple access,Handover,Grade of service
Journal
Volume
Issue
ISSN
2008
1
1687-1499
Citations 
PageRank 
References 
3
0.45
13
Authors
4
Name
Order
Citations
PageRank
Jang-Sub Kim113313.04
Erchin Serpedin21407127.31
Dong-Ryeol Shin312427.03
Khalid A. Qaraqe480895.80