Recoverable mobile environment: Design and trade off-analysis

Dhiraj K. Pradhan, P. Krishna, Nitin H. Vaidya

Research output: Contribution to journalConference articlepeer-review


The mobile wireless environment poses challenging problems in designing fault-tolerant systems because of the dynamics of mobility, and limited bandwidth available on wireless links. Traditional fault-tolerance schemes, therefore, cannot be directly applied to these systems. Mobile systems are often subject to environmental conditions which can cause loss of communications or data. Because of the consumer orientation of most mobile systems, run-time faults must be corrected with minimal (if any) intervention from the user. The fault-tolerance capability must, therefore, be transparent to the user. Presented here are schemes for recovery upon a failure of a mobile host. This paper portrays the limitations of the mobile wireless environment, and their impact on recovery protocols. Toward this, adaptation of well-known recovery schemes are presented which suit the mobile environment. The performance of these schemes has been analyzed to determine those environments where a particular recovery scheme is best-suited. The performance of the recovery schemes primarily depends on (i) the wireless bandwidth, (ii) the communication-mobility ratio of the user, and (iii) the failure rate of the mobile host.

Original languageEnglish (US)
Pages (from-to)16-25
Number of pages10
JournalProceedings - Annual International Conference on Fault-Tolerant Computing
StatePublished - 1996
Externally publishedYes
EventProceedings of the 1996 26th International Symposium on Fault-Tolerant Computing - Sendai, Jpn
Duration: Jun 25 1996Jun 27 1996

ASJC Scopus subject areas

  • Hardware and Architecture


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