Data Centric Storage in Non-Uniform Sensor Networks
Authors: Michele Albano, Stefano Chessa, Francesco Nidito and Susanna Pelagatti
Comments: 16 pages, 19 figures
Abstract:
Dependable data storage in wireless sensor networks is becoming
increasingly important, due to the lack of reliability of the
individual sensors. Recently, data centric storage (DCS) has been
proposed to manage in network sensed data. DCS reconsiders ideas and
techniques successfully proposed in peer to peer systems within the
framework of wireless sensor networks. In particular it assume that
data are uniquely named and data storage and retrieval is achieved
using names instead of sensor nodes addresses. In this paper, we
discuss the limitations of previous approaches, and in particular of
Geographic Hash Tables (GHT), and introduce DELiGHT, a protocol which
provides fine QoS control by the user and ensures even data
distribution, also in non uniform sensor networks. The merits of
DELiGHT have been evaluated through simulation in uniform and Gaussian
distributed sensor networks. The simulation results show that the
protocol provides a better load balancing than the previous proposals
and that the QoS is ensured without appreciable overhead.
@inproceedings{INGRID07Delight, author = {Michele Albano and Stefano Chessa and Francesco Nidito and Susanna Pelagatti}, title = {Data Centric Storage in Non-Uniform Sensor Networks}, booktitle= {Prooceedings of the 2nd International Workshop on Distributed Cooperative Laboratories: Instrumenting the Grid (INGRID 2007)}, address = {Santa Margherita Ligure (Genova), Italy}, year = {2007} }