Semantic data access in an asymmetric mobile environment

K. C.K. Lee, Hong Va Leong, A. Si

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

18 Citations (Scopus)


The mobile environment is inherently asymmetric. To utilize the downstream bandwidth effectively, hot data items should be disseminated over the broadcast channel to the mobile clients. To equip clients with the ability to identify the nature of the broadcast and to determine the answerability of their queries, semantic descriptions are associated with information units in the broadcast, organized into data chunks. Based on the nature of data items received over the broadcast, clients can initiate appropriate requests to make up for the remaining items over the back channels in an on-demand basis. We investigation into several semantic-based algorithms to organize data chunks and compare their performance with traditional data item-based organization in the asymmetric environment.
Original languageEnglish
Title of host publicationProceedings - 3rd International Conference on Mobile Data Management, MDM 2002
Number of pages8
ISBN (Electronic)0769515002
Publication statusPublished - 1 Jan 2002
Event3rd International Conference on Mobile Data Management, MDM 2002 - Singapore, Singapore
Duration: 8 Jan 200211 Jan 2002


Conference3rd International Conference on Mobile Data Management, MDM 2002


  • Algorithm design and analysis
  • Bandwidth
  • Broadcasting
  • Delay
  • Indexing
  • Information retrieval
  • Mobile communication
  • Mobile computing
  • Multidimensional systems
  • Scheduling algorithm

ASJC Scopus subject areas

  • Engineering(all)


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