Journal of Communications and Networks

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Seamless and Secure Mobility Management with Location-Aware Service (LAS) Broker for Future Mobile Interworking Networks

  • Lee Minsoo (School of Electrical and Electronics Engineering, Chung-Ang University) ;
  • Kim Gwanyeon (School of Electrical and Electronics Engineering, Chung-Ang University) ;
  • Park Sehyun (School of Electrical and Electronics Engineering, Chung-Ang University)
  • Published : 2005.06.01
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Abstract

The proliferation of wireless local area networks (WLANs) offering high data rate in hot spot area have spurred the demand for possible WLANs and third-generation (3G) cellular network integration solutions as the initiative step towards 4G systems. This paper provides a novel architecture for seamless location-aware integration of WLANs into 3G cellular networks and also an analysis for the efficient handover techniques. We introduce location as a key context in secure roaming mechanism for context-aware interworking in 4G systems. The fast secure roaming with location-aware authentication is implemented at an entity called location-aware service (LAS) broker that utilizes the concepts of direction of user and pre-warming zone. The location-ware interworking architecture supports seamless roaming services among heterogeneous wireless networks including WLANs, wireless metropolitan area networks (WMANs), and 3G cellular networks. This paper also includes a description of procedures needed to implement efficient mobility and location management. We show how the LAS broker with pre-warming and context transfer can obtain significant lower latency in the vertical handover.

Keywords

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