Fast Handoff Algorithm Using Access Points with Dual RF Modules (original) (raw)

Abstract

With the spread of portable computers, mobile users rapidly increase and have growing interests in wireless LAN (WLAN). However, when a mobile node (MN) moves, handoff can frequently occur. The frequent handoff makes fast and seamless mobility difficult to achieve. Generally the handoff delay is so long that a provider can not support realtime services sufficiently. In this paper, to address the link layer (L2) handoff delay problem, we propose a fast handoff algorithm using access points (APs) with dual radio frequency (RF) modules. The proposed handoff algorithm is based on the modified neighbor graph (NG). Experimental results show that the proposed method reduces the L2 handoff delay drastically. Furthermore, the handoff delay in the network layer (L3) can be also reduced simultaneously, since the proposed algorithm can support L2 triggers.

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Author information

Authors and Affiliations

  1. Department of Electronics Engineering, Korea University, Anam-Dong, Sungbuk-Ku, Seoul, 136-701, Korea
    Chun-Su Park, Hye-Soo Kim, Sang-Hee Park & Sung-Jea Ko
  2. i-Networking Lab, Samsung Advanced Institute of Technology, Suwon, Korea
    Kyunghun Jang

Authors

  1. Chun-Su Park
  2. Hye-Soo Kim
  3. Sang-Hee Park
  4. Kyunghun Jang
  5. Sung-Jea Ko

Editor information

Editors and Affiliations

  1. Department of Computer Science, University of Beira Interior, Rua Marques d’Avila e Bolama, 6201-001, Covilha, Portugal
    Mário Marques Freire
  2. France Telecom, Research and Development, CORE/SPP, 37-40 rue du Général Leclerc, 92794, Issy-les-Moulineaux Cedex 9, France
    Prosper Chemouil
  3. IUT, University of Haute Alsace, 34, rue du Grillenbreit, 68008, Colmar, France
    Pascal Lorenz
  4. Département Informatique, ENST-Bretagne, CS 83818, 29238, Brest Cedex 3, France
    Annie Gravey

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© 2004 Springer-Verlag Berlin Heidelberg

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Park, CS., Kim, HS., Park, SH., Jang, K., Ko, SJ. (2004). Fast Handoff Algorithm Using Access Points with Dual RF Modules. In: Freire, M.M., Chemouil, P., Lorenz, P., Gravey, A. (eds) Universal Multiservice Networks. ECUMN 2004. Lecture Notes in Computer Science, vol 3262. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-30197-4\_3

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