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SHARE: seamless handover architecture for 3G-WLAN roaming environment

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Abstract

For the transition from 3G communication systems to 4G communication systems, 3G-WLAN interworking systems can be a reference model for 4G communication systems. In this paper, we identify challenging problems in 3G-WLAN interworking systems and propose a loosely coupled architecture called SHARE. In SHARE, each WLAN hotspot access point (AP) is equipped with a 3G radio transmission module to generate radio signals for control channels of 3G networks in addition to a WLAN radio module. Consequently, base stations of the 3G networks share their control channels with hotspot APs. By monitoring these channels, mobile nodes can easily detect available WLAN hotspots without probe delay for handovers.

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Authors and Affiliations

  1. School of Electrical Engineering and Computer Science, and ASRI, Seoul National University, Seoul, Korea

    Chaegwon Lim, Dong-Young Kim & Chong-Ho Choi

  2. Samsung Electronics Co., Suwon, Korea

    Osok Song

Authors
  1. Chaegwon Lim
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  2. Dong-Young Kim
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  3. Osok Song
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  4. Chong-Ho Choi
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Correspondence to Chaegwon Lim.

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Lim, C., Kim, DY., Song, O. et al. SHARE: seamless handover architecture for 3G-WLAN roaming environment. Wireless Netw 15, 353–363 (2009). https://doi.org/10.1007/s11276-007-0054-5

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  • DOI: https://doi.org/10.1007/s11276-007-0054-5

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