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SmartCAC : Novel Distributed Connection Admission Control Framework for Heterogeneous Networks  

Kim, Hyo-Eun (Engineer, R&D Group 8, S/W Lab. Mobile Communication Division, Telecommunication Network Business, Samsung Electronics Co. LTD.)
Kim, Won-Tae (Embedded Software Research Division, ETRI)
Kang, Eun-Hyun (Dept. of Electronics and Computer Engineering, Hanyang Univ.)
Park, Yong-Jin (Dept. of Electronics and Computer Engineering, Hanyang Univ.)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.44, no.7, 2007 , pp. 70-80 More about this Journal
Abstract
For supporting various mobile networks, this paper proposes a framework of distributed connection admission control, named SmartCAC. Especially, intelligent CAC operations are adopted in terms of interoperation between mobile nodes and mobile networks. This scheme does not need to correct information between networks. Basically vertical handover call can use guard channel that was reserved for handoff, because SmartCAC addresses the identification between vertical handover call and new call, delay and reliability as requirement of QoS for efficient connection control. The scheme also uses mobile terminal speed for network filtering. Especially an extended protocol is proposed to give different network states information to mobile nodes because there have been no ways for mobile nodes to compare the states of different networks. Sophisticated simulation study is performed in order to evaluate SmartCAC in terms of signaling cost. As a result, signaling cost of ours is up to 96% better than that of the existing scheme.
Keywords
connection control; heterogeneous networks;
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