A seamless handoff scheme for UMTS-WLAN interworking

@article{Choi2004ASH,
  title={A seamless handoff scheme for UMTS-WLAN interworking},
  author={Hyun-Ho Choi and Osok Song and Dong-Ho Cho},
  journal={IEEE Global Telecommunications Conference, 2004. GLOBECOM '04.},
  year={2004},
  volume={3},
  pages={1559-1564 Vol.3}
}
In this paper, we present a practical UMTS-WLAN interworking architecture based on 3GPP standards, and propose a seamless handoff scheme that guarantees low delay and low packet loss during UMTS-WLAN handoff. For low handoff delay, the proposed handoff scheme performs pre-registration and pre-authentication processes before the layer 2 handoff. Moreover, it uses packet buffering and forwarding functions in order to reduce packet loss during the handoff period. Numerical and simulation results… CONTINUE READING
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