ABSTRACT
Vertical handoff is a switching process between heterogeneous wireless networks in a hybrid 3G/WLAN network. Vertical handoffs from WLAN to 3G network often fail due to the abrupt degrade of the WLAN signal strength in the transition areas. In this paper, a Handoff Trigger Table is introduced to improve the performance of vertical handoff. Based on this table, a proactive handoff scheme is proposed. Simulation results show that with the proposed scheme, the vertical handoff decisions will be more efficient so that dropping probability can be decreased dramatically.
- Q. Zhang, C. Guo, Z. Guo and W. Zhu, "Efficient mobility management for vertical handoff between WWAN and WLAN", IEEE Communications Magazine Vol. 41, Issue 11, Nov. 2003, pp. 102--108. Google ScholarDigital Library
- W.-T. Chen; J.-C. Liu; H.-K. Huang, "An adaptive scheme for vertical handoff in wireless overlay networks", Proceedings of International Conference on Parallel and Distributed Systems 2004, 7-9 July 2004, pp. 541--548. Google ScholarDigital Library
- P. Khadivi, T.D. Todd and D. Zhao, "Handoff trigger nodes for hybrid IEEE 802.11 WLAN/cellular networks", Proc. QSHINE 2004, pp. 164--170. Google ScholarDigital Library
- A. Majlesi and B.H. Khalaj, "An adaptive fuzzy logic based handoff algorithm for interworking between WLANs and mobile networks", Proc. PIMRC'02, Sept. 2002, pp. 2446--2451.Google ScholarCross Ref
- K. Pahlavan, et al., "Handoff in hybrid mobile data networks", IEEE Personal Communications, Vol.7, No.2, April 2000, pp. 34--47.Google ScholarCross Ref
- J.-Z. Sun, J. Sauvola and D. Howie, "Features in future: 4G visions from a technical perspective", Proc. GLOBECOM'01, Nov. 2001, pp. 3533--3537.Google Scholar
- P. Bahl and V. Padmanabhan, "RADAR: An in-building RF-based user location and tracking system", Proc. IEEE INFOCOM'00, Tel-Aviv, Israel, 2000, pp. 775--784.Google ScholarCross Ref
- P.Krishnan, A.S. Krishnakumar, W.-H. Ju, C. Mallows, and S. Ganu, "A system for LEASE: location estimationassisted by stationary emitters for indoor RF wireless networks", Proc. IEEE INFOCOM'04, Hongkong, 2004, pp. 1001--1011.Google Scholar
- K.-I. Itoh, S. Watanabe, J.-S. Shih, and T. Sato, "Performance of handoff algorithm based on distance and RSSI measurements", IEEE Trans. Vehic. Technol., Vol. 51, No. 6, Nov. 2002, pp.1460 -- 1468.Google ScholarCross Ref
- J. Makela, M. Ylianttila and K. Pahlavan, "Handoff decision in multi-service networks", Proc. PIMRC'00, Sept. 2000, pp. 655--659.Google ScholarCross Ref
- A.H. Zahran and B. Liang, "Performance evaluation framework for vertical handoff algorithms in heterogeneous networks", Proc ICC 2005, May 2005, pp. 173--178Google ScholarCross Ref
- C Bettstetter, H Hartenstein and X Perez-Costa, "Stochastic properties of the random waypoint mobility model", Wireless Networks, Vol. 10, No. 5, Sept. 2004, pp. 555--567. Google ScholarDigital Library
Index Terms
- Handoff trigger table for integrated 3G/WLAN networks
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