Abstract
Due to the specific characteristics in terms of long propagation delay, high bit-error-rate and limited available bandwidth in the underwater environment, designing the medium access control (MAC) protocol in underwater acoustic sensor networks (UWASNs) is a challenging issue. Considering a UWASN for data collection, data generated at sensor nodes are transmitted to the sink node hop by hop. Since the traffic load in each hop is different, single-mode MAC protocol cannot satisfy the requirement of the data collection mission. In this paper, we propose a hybrid MAC protocol for two-tier data-collection-oriented UWASN. In the proposed hybrid MAC protocol, a contention-based MAC protocol is performed in the lightly loaded sub-network, and a reservation-based MAC protocol is carried out in the heavily loaded sub-network. Moreover, the proposed MAC protocol supports the access of mobile nodes, such as autonomous underwater vehicle (AUV). Simulation results show that the proposed hybrid MAC protocol achieves high throughput.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
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.