Distance aware collision avoidance protocol for ad-hoc underwater acoustic sensor networks

This paper proposes a channel access protocol for ad-hoc underwater acoustic networks which are characterized by long propagation delays and unequal transmit/receive power requirements. The protocol saves transmission energy by avoiding collisions while maximizing throughput. It is based on minimizi...

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Bibliographic Details
Published in:IEEE communications letters 2007-12, Vol.11 (12), p.1025-1027
Main Authors: Peleato, B., Stojanovic, M.
Format: Article
Language:English
Subjects:
Access methods and protocols, osi model
Access protocols
Acoustic sensors
Applied sciences
Channels
Collision avoidance
Delay
Energy conservation
Exact sciences and technology
Information, signal and communications theory
Interference
Media Access Protocol
Modems
Multiplexing
Networks
Propagation delay
Sensor phenomena and characterization
Signal and communications theory
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Teleprocessing networks. Isdn
Throughput
Tolerances
Transmission and modulation (techniques and equipments)
Underwater acoustics
Wastes
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Summary:This paper proposes a channel access protocol for ad-hoc underwater acoustic networks which are characterized by long propagation delays and unequal transmit/receive power requirements. The protocol saves transmission energy by avoiding collisions while maximizing throughput. It is based on minimizing the duration of a hand-shake by taking advantage of the receiver's tolerance to interference when the two nodes are closer than the maximal transmission range. Nodes do not need to be synchronized, can move, are half-duplex, and use the same transmission power. This protocol achieves a throughput several times higher than that of the slotted FAMA, while offering similar savings in energy. Although carrier sensing ALOHA offers a higher throughput, it wastes much more power on collisions.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2007.071160