Abstract
The ease of deployment and the auto-configuration capabilities of Wireless Sensor Networks (WSNs) make them very attractive in different domains like environmental, home automation or heath care applications. The use of multichannel communications in WSNs helps to improve the overall performance of the network. However, in heavy traffic scenarios, routing protocols should be adapted to allow load balancing and to avoid losing data packets due to congestion and queue overflow. In this paper, we present an Acknowledgement-Based Opportunistic Routing (ABORt) protocol designed for high data rate multichannel WSNs. It is a low overhead protocol that does not rely on synchronization for control traffic exchange during the operational phase of the network. ABORt is an opportunistic protocol that relies on link layer acknowledgements to disseminate routing metrics, which helps to reduce overhead. The performance of ABORt is evaluated using the Cooja simulator and the obtained results show that ABORt has a high packet delivery ratio with reduced packet end-to-end delay compared to two single channel routing protocols and two multichannel routing protocols that use number of hops and expected transmission count as routing metrics.
Highlights
Wireless sensor networks (WSNs) are a very attractive solution for their ease of deployment and auto-configuration
We focus on enhancing the network efficiency in high data rate scenarios in terms of packet delivery ratio, throughput, and end-to-end delay by investigating the use of an adaptive routing protocol over a multichannel MAC (Medium Access Control) protocol
In the scenarios with less nodes and light traffic, CoLBA has less overhead than the other protocols because the medium is less occupied and CoLBA metric value is almost stable with a low risk of queue overflow
Summary
Wireless sensor networks (WSNs) are a very attractive solution for their ease of deployment and auto-configuration. A wide range of needs can be answered using WSNs in environmental, medical, industrial or military applications [1] This technology has attracted a lot of researchers and intensive work has been done on energy efficiency communication protocols [2,3], and has been considered for high data rate applications [4,5]. We focus on enhancing the network efficiency in high data rate scenarios in terms of packet delivery ratio, throughput, and end-to-end delay by investigating the use of an adaptive routing protocol over a multichannel MAC (Medium Access Control) protocol. ABORt, or Acknowledgement-Based Opportunistic Routing, is our contribution It is a routing protocol designed for high data rate multichannel WSNs. ABORt does not rely on periodic control messages for exchanging the routing information.
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