2nd International ICST Conference on Wireless Internet

Research Article

Improving layer 3 handoff delay in IEEE 802.11 wireless networks

  • @INPROCEEDINGS{10.1145/1234161.1234173,
        author={Andrea G. Forte and Sangho Shin and Henning  Schulzrinne},
        title={Improving layer 3 handoff delay in IEEE 802.11 wireless networks},
        proceedings={2nd International ICST Conference on Wireless Internet},
        publisher={ACM},
        proceedings_a={WICON},
        year={2006},
        month={8},
        keywords={Fast handoff fast IP address acquisition SIP VoIP 802.11},
        doi={10.1145/1234161.1234173}
    }
    
  • Andrea G. Forte
    Sangho Shin
    Henning Schulzrinne
    Year: 2006
    Improving layer 3 handoff delay in IEEE 802.11 wireless networks
    WICON
    ACM
    DOI: 10.1145/1234161.1234173
Andrea G. Forte1,*, Sangho Shin1,*, Henning Schulzrinne1,*
  • 1: Department of Computer Science, Columbia University.
*Contact email: andreaf@cs.columbia.edu, sangho@cs.columbia.edu, hgs@cs.columbia.edu

Abstract

In this paper we will analyze the many components of a L3 hand-off and will introduce a novel algorithm for reducing the L3 hand-off time. We will introduce the concept of Temporary IP address (TEMPIP) as a way to resume communication immediately after the handoff while waiting for the DHCP server to assign us a new IP address (NEWIP). We will show how, with our approach, it is possible to reduce the L3 handoff latency to values that in some cases allow us to have seamless VoIP sessions.