Multilayer routing based on energy efficiency and link quality for wireless sensor networks
This Thesis describes the development of a new routing protocol for Wireless
Sensor Networks (WSN) for energy restriction and scenarios with high density of nodes.
Through the study of the main goals of data communication and the state of the art on the
routing protocols and technologies for WSN, this proposal has the following requirements
throughput, reliability on data delivery and energy-efficiency. The study presents in detail
the AODV (Ad hoc On Demand Distance Vector) protocol and its relevance in the context
of WSN, due to the fact of its popularity among the devices. Additionally, it is presented
the proposed extensions for AODV and their main drawbacks to provide the required
goals. The REL (Routing by Link Energy and Quality) protocol is the result of this
research and the proposed solution for on-demand routing protocol for plan architecture
based on energy-efficiency and link quality, in order to provide scalability, load balancing
and prolong the network lifetime. The REL protocol was evaluated by using simulation
and tesbed experiments in order to show its impact and benefits in real and simulated
scenarios. The results presents that REL increases the data delivery rate due to the use
of reliable links with less probability of error. Additionally, it uses energy issues to select
routes, which avoid the fast saturation of nodes and increase the network lifetime.
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