DLM: Delayed location management in network mobility (NEMO)-based public transportation systems

Haneul Ko, Sangheon Pack, Jong Hyouk Lee, Alexandru Petrescu

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Network mobility basic support (NEMO-BS) supports efficient group mobility. However, when NEMO-BS is applied to public transportation systems where mobile nodes (MNs) frequently get in/off the public transportation, significant signaling overhead owing to frequent and unnecessary binding updates can occur. To address this problem, we propose a delayed location management (DLM) scheme where an MN postpones its binding update for a pre-defined timer to mitigate the binding update overhead. To evaluate the performance of DLM, we develop an analytical model for the binding update cost and the packet delivery cost during the boarding time. Also, a timer selection algorithm is proposed to optimize the performance of DLM. Evaluation results demonstrate that DLM can reduce the binding update cost and packet delivery cost in a balanced manner by choosing an appropriate timer.

Original languageEnglish
Pages (from-to)127-133
Number of pages7
JournalJournal of Network and Computer Applications
Publication statusPublished - 2017 May 1


  • Location management
  • Mobility management
  • Network mobility (NEMO)
  • Public transportation

ASJC Scopus subject areas

  • Hardware and Architecture
  • Computer Science Applications
  • Computer Networks and Communications


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