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DTN routing in body sensor networks with dynamic postural partitioning

Authors
Journal
Ad Hoc Networks
1570-8705
Publisher
Elsevier
Publication Date
Volume
8
Issue
8
Identifiers
DOI: 10.1016/j.adhoc.2010.03.002
Keywords
  • Body Area Sensor Networks
  • Multi-Scale Link Locality
  • Probabilistic Routing
  • Utility Based Routing
  • Delay Tolerant Networks
Disciplines
  • Computer Science
  • Mathematics

Abstract

Abstract This paper presents novel store-and-forward packet routing algorithms for Wireless Body Area Networks ( WBAN) with frequent postural partitioning. A prototype WBAN has been constructed for experimentally characterizing on-body topology disconnections in the presence of ultra short range radio links, unpredictable RF attenuation, and human postural mobility. On-body DTN routing protocols are then developed using a stochastic link cost formulation, capturing multi-scale topological localities in human postural movements. Performance of the proposed protocols are evaluated experimentally and via simulation, and are compared with a number of existing single-copy DTN routing protocols and an on-body packet flooding mechanism that serves as a performance benchmark with delay lower-bound. It is shown that via multi-scale modeling of the spatio-temporal locality of on-body link disconnection patterns, the proposed algorithms can provide better routing performance compared to a number of existing probabilistic, opportunistic, and utility-based DTN routing protocols in the literature.

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