Visible to the public Effects of Topology Information on Routing in Contention-Based Underwater Acoustic Networks

TitleEffects of Topology Information on Routing in Contention-Based Underwater Acoustic Networks
Publication TypeConference Paper
Year of Publication2017
AuthorsKomulainen, A., Nilsson, J., Sterner, U.
Conference NameOCEANS 2017 - Aberdeen
ISBN Number978-1-5090-5278-3
Keywordsacoustic communication, Ad-Hoc Network, contention-based channel access method, degree-of-topology information, energy consumption, Load modeling, local topology information, mine countermeasures, network protocols, Network reconnaissance, network simulations, Network topology, opportunistic flooding approach, propagation delays, Protocols, pubcrawl, Relays, reliability, Resiliency, retransmission reduction, robust information distribution, Routing, routing efficiency, telecommunication network reliability, telecommunication network routing, telecommunication network topology, terrestrial wireless network topology information, Topology, topology information, underwater acoustic communication, underwater acoustic networks, Underwater acoustics

Underwater acoustic networks is an enabling technology for a range of applications such as mine countermeasures, intelligence and reconnaissance. Common for these applications is a need for robust information distribution while minimizing energy consumption. In terrestrial wireless networks topology information is often used to enhance the efficiency of routing, in terms of higher capacity and less overhead. In this paper we asses the effects of topology information on routing in underwater acoustic networks. More specifically, the interplay between long propagation delays, contention-based channels access and dissemination of varying degrees of topology information is investigated. The study is based on network simulations of a number of network protocols that make use of varying amounts of topology information. The results indicate that, in the considered scenario, relying on local topology information to reduce retransmissions may have adverse effects on the reliability. The difficult channel conditions and the contention-based channels access methods create a need for an increased amount of diversity, i.e., more retransmissions. In the scenario considered, an opportunistic flooding approach is a better, both in terms of robustness and energy consumption.

Citation Keykomulainen_effects_2017