Open AccessSoft handoff support for SIP‐NEMO: design, implementation, and performance evaluation
Author(s) -
Yang ShunRen,
Huang YaJun,
Chiu ChunWei
Publication year - 2011
Publication title -
wireless communications and mobile computing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.42
H-Index - 64
eISSN - 1530-8677
pISSN - 1530-8669
DOI - 10.1002/wcm.847
Subject(s) - handover , computer science , computer network , soft handover
SIP‐NEMO has previously been proposed in the literature as a NEtwork MObility (NEMO) solution. However, the SIP‐NEMO handoff delay has been shown to be more than 320 ms, which is intolerable for real‐time services. In this paper, we focus on reducing the SIP‐NEMO handoff delay. We design a soft handoff mechanism for SIP‐NEMO and implement a test‐bed for it with soft handoff support. The experimental results indicate that our SIP‐NEMO with soft handoff support can effectively reduce the handoff disruption time from those of SIP‐NEMO without soft handoff and MIPv4‐NEMO with fast handover. Thus, our proposed soft handoff mechanism for SIP‐NEMO can improve the handoff performance so it can meet the delay requirements of real‐time multimedia applications. Copyright © 2009 John Wiley & Sons, Ltd.