Abstract
This paper proposes a new Energy and Latency Aware MAC (ELA-MAC) protocol that provides high energy-efficiency and low latency for data collection applications in wireless sensor networks. In previous research, B-MAC+ avoids the receiver node's preamble overhearing of B-MAC with short preamble packets including only the destination address and the preamble packet number. However, like B-MAC, B-MAC+ has the sender node's preamble overhead and communication latency. XY-MAC tries to solve these problems with inserting an early ACK between preamble packets. However, with the independence of each node's wake-up point, the receiver node's idle listening duration of XY-MAC is always longer than that of B-MAC+. ELA-MAC spreads collection-request without using an early ACK and delivers collection-response using an early ACK with considering the traffic types such as broadcasting and convergecasting. In this way, energy consumption on both downlink and uplink can be reduced. Besides, the time for collecting data can be shortened on uplink. With the experimental parameter obtained by the energy consumption analysis, the experiment was performed on a real sensor network test bed with various topologies. We obtained the result that ELA-MAC improves the energy efficiency by 12% and 37% compared to B-MAC+ and XY-MAC, respectively, and data collection time by 28% compared to B-MAC+.
Highlights
A wireless sensor network consists of several sensor nodes that use constrained energy resources
We propose Energy and Latency Aware media access control (MAC) (ELA-MAC) protocol that provides high energy-efficiency and low latency for data collection in a wireless sensor network
For performance verification of the proposed protocol, we constructed a wireless sensor network test bed and compared scenarios when operating under BMAC+ and XY-MAC
Summary
A wireless sensor network consists of several sensor nodes that use constrained energy resources. An asynchronous MAC protocol like B-MAC uses preamble sampling, which synchronizes only for nodes involved in the communication This technique has less overhead compared to methods exchanging sync-packets. Like B-MAC, it causes preamble overhead when the sender node transmits short preamble packets consecutively for a longer time than the sleep duration before sending the actual data to the destination node. This requires improved design in the MAC layer, considering twoway communication traffic, rather than applications in sending events, which is only capable of one-way communication traffic toward the sink node.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Distributed Sensor Networks
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
