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Research and Implementation of Mobile IPv6 Fast Handoff Based on Layer 2 Triggers

Sun Xang

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Abstract

Because of high latency handoff, Mobile ipv6 can't meet demands for real-time services such as VoIP, video. For this, IETF proposed fast Mobile IPv6 draft. However, it is difficult to implement the draft in IEEE 802. 11b/a WLAN environment. In this paper, we propose a new low latency handoff method based on the draft, where link layer trigger signal and fast RA are jointly used to decrease handoff delay. We also implement the method by using access router based on network processor and Linux machines. Finally, experiment results show that the system can achieve low latency handoff and low fluctuate of end to end latency.

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What this paper is about

Because of high latency handoff, Mobile ipv6 can't meet demands for real-time services such as VoIP, video. For this, IETF proposed fast Mobile IPv6 draft. However, it is difficult to implement the draft in IEEE 802. 11b/a WLAN environment. In this paper, we propose a new low latency handoff method based on the draft, where link layer trigger signal and fast RA are jointly used to decrease handoff delay. We also implement the method by using access router based on network processor and Linux machines. Finally, experiment results show that the system can achieve low latency handoff and low fluctuate of end to end latency.

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Available abstract

Because of high latency handoff, Mobile ipv6 can't meet demands for real-time services such as VoIP, video. For this, IETF proposed fast Mobile IPv6 draft. However, it is difficult to implement the draft in IEEE 802. 11b/a WLAN environment. In this paper, we propose a new low latency handoff method based on the draft, where link layer trigger signal and fast RA are jointly used to decrease handoff delay. We also implement the method by using access router based on network processor and Linux machines. Finally, experiment results show that the system can achieve low latency handoff and low fluctuate of end to end latency.

Key concepts: Computer science, Handover, Computer network, Voice over IP, Mobile IP, IPv6, Router, Latency (audio)

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