SAMP: Scalable application-layer mobility protocol

Sangheon Pack, Kunwoo Park, Taekyoung Kwon, Yanghee Choi

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)


As wireless/mobile technologies evolve, the market for mobile Internet is rapidly growing. To proliferate mobile Internet market, scalable mobility support is a key question. In this article, we propose a scalable application-layer mobility protocol (SAMP) that is based on peer-to-peer (P2P) overlay networking and session initiation protocol (SIP). SAMP keeps track of locations of mobile nodes leveraging SIP mobility functions. In SAMP, all SIP servers form a P2P overlay network, which enables scalable, load balanced, and robust mobile Internet. In addition, two optimization techniques, hierarchical registration and two-tier caching schemes, are employed to localize signaling traffic for mobility and to reduce the session setup latency, respectively. Simulation results demonstrate that SAMP is an attractive choice for scalable mobile Internet and its limitations such as long handoff and session setup latencies are substantially mitigated by the optimization techniques.

Original languageEnglish
Pages (from-to)86-92
Number of pages7
JournalIEEE Communications Magazine
Issue number6
Publication statusPublished - 2006 Jun
Externally publishedYes

Bibliographical note

Funding Information:
This work was supported in part by the Brain Korea 21 project of the Ministry of Education and in part by the Korean Research Foundation under grant no. M01-000-10073-0, 2005, Korea.

ASJC Scopus subject areas

  • Computer Science Applications
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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