NDLI: Hybrid coupling scheme for UMTS and wireless LAN interworking

Content Provider	IEEE Xplore Digital Library
Author	Jee-young Song Sung-won Lee Dong-ho Cho
Copyright Year	2004
Description	Author affiliation: Dept. Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea (Jee-young Song)
Abstract	This paper proposes a hybrid coupling scheme to connect UMTS and WLAN networks. Under the tight-coupled system, users of WLAN can also use the services of UMTS with guaranteed QoS and seamless mobility, but it is a problem that the capacity of UMTS core network nodes is not enough to accommodate the bulky data traffic from WLAN, since the core network nodes are designed to handle circuit voice calls or short packets. The proposed coupling scheme differentiates the data paths according to the type of the traffic and can accommodate traffic from WLAN efficiently with guaranteed QoS and seamless mobility. It also compares the handover procedures of coupling strategies and analyzes the signaling costs during vertical handover. In case of the UMTS and the WLAN are coupled according to the proposed way, it is shown that the handover latency and packet loss decrease.
Starting Page	2247
Ending Page	2251
File Size	389599
Page Count	5
File Format	PDF
ISBN	0780379543
ISSN	10903038
DOI	10.1109/VETECF.2003.1285929
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-10-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	3G mobile communication Wireless LAN Telecommunication traffic Coupling circuits Land mobile radio cellular systems IP networks Delay Joining processes Information systems DH-HEMTs
Content Type	Text
Resource Type	Article

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