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IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, VOL. 58, NO. 9, SEPTEMBER 2009 3347 An Adaptive LLC-Based and Hierarchical
 

Summary: IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, VOL. 58, NO. 9, SEPTEMBER 2009 3347
An Adaptive LLC-Based and Hierarchical
Power-Aware Routing Algorithm
Cesare Alippi, Fellow, IEEE, Romolo Camplani, and Manuel Roveri
Abstract--In a wireless sensor network (WSN), we can rarely
assume the static network topology hypothesis. In fact, the topol-
ogy may change due to unit and communication faults, energy
availability, and environmental dynamics--situations that could
prevent the acquired data to be successfully routed to the base sta-
tion (BS). In recent years, many self-organizing routing algorithms
that provide topology adaptation in an energy-aware context at
the network level have been proposed. Among these, hierarchical
algorithms are particularly adequate solutions for their scalability,
power efficiency, extended network lifetime, and intrinsic adapt-
ability abilities. This paper suggests a k-level hierarchical exten-
sion of the Low-energy Localized Clustering (LLC) algorithm that
takes into account the estimate of the residual energy of nodes, the
aggregation degree, and uniform coverage level of the monitoring
area as well as extended lifetime for the network nodes. The
effectiveness of the proposed solution has been validated with an

  

Source: Alippi, Cesare - Dipartimento di Elettronica e Informazione, Politecnico di Milano

 

Collections: Computer Technologies and Information Sciences