Special Issue: Computer Networks and Distributed Computing

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Smart Proactive Caching Scheme for Fast Authenticated Handoff in Wireless LAN

Sin-Kyu Kim1, Jae-Woo Choi2, Dae-Hun Nyang2, Gene-Beck Hahn3, and Joo-Seok Song4   

  1. 1Electronics Telecommunications Research Institute, Daejeon, Korea 2Graduate School of Information Technology and Telecommunications, Inha University, Incheon, Korea 3Mobile Communication Technology Research Lab, LG Electronics, Anyang, Korea 4Department of Computer Science, Yonsei University, Seoul, Korea
  • Received:2005-12-02 Revised:2007-03-27 Online:2007-05-10 Published:2007-05-10

Handoff in IEEE 802.11 requires the repeated authentication and key exchange procedures, which will make the provision of seamless services in wireless LAN more difficult. To reduce the overhead, the proactive caching schemes have been proposed. However, they require too many control packets delivering the security context information to neighbor access points. Our contribution is made in two-fold: one is a significant decrease in the number of control packets for proactive caching and the other is a superior cache replacement algorithm.

Key words: connectivity; hypercube; interconnection network; routing algorithm;

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