Abstract
We propose two link-layer reliable broadcast protocols for wireless sensor networks based on IEEE 802.15.5. We compare them in terms of energy consumption. By including both positive and negative acknowledgement, our second proposed scheme can effectively reduce the number of unnecessary error control messages and, thereby, significantly reducing the unnecessary power consumption relative to the first scheme. Also, we provide an analytical framework for the evaluation of different reliable broadcast techniques. Simulation results show that Scheme 2 achieves energy savings of up to about 85% compared to Scheme 1.
Highlights
There have been several proposals to provide reliable transmission in wireless sensor networks (WSNs) between the transport layer and the link layer [1,2,3]
We propose two reliable broadcast protocols for WSNs based on IEEE 802.15.5: Scheme 1 and Scheme 2
Simulation results show that Scheme 2 achieves energy savings of up to about 85% compared to Scheme 1 and a legacy technique
Summary
There have been several proposals to provide reliable transmission in wireless sensor networks (WSNs) between the transport layer and the link layer [1,2,3]. IEEE 802.15 Task Group 5 has recently released the IEEE 802.15.5 standard [4] This standard provides an architectural framework enabling wireless personal area network (WPAN) devices to promote interoperable and stable wireless mesh topologies [5]. The distributed MAC mechanism ensures high performance and efficient relaying of a MAC frame from a source to a destination in the network, possibly over several multihop relay devices that form an IEEE 802.15.5-based. The applications enabled by WSNs are very attractive, there are many technical challenges to overcome in order to build well-functioning robust systems based on IEEE 802.15.5 technology; the identified challenges include scalability, reliability, and energy efficiency. We propose two link-layer reliable broadcast protocols for IEEE 802.15.5: Scheme 1 and Scheme 2 and compare them in terms of energy consumption.
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