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Token-based data collection protocols for multi-hop underwater acoustic sensor networks: short paper

Published: 03 November 2009 Publication History

Abstract

We propose two novel token-based data collection protocols for multi-hop underwater acoustic sensor networks (UW-ASNs). The proposed protocols, namely the tree-based protocol and the ring-based protocol, use tokens to guarantee contention-free medium access for each transmission and reliable collection of data from each node. For the tree-based protocol, we propose a depth-first traversal of a Minimal Spanning Tree (MST) rooted at the sink node, providing a constant factor two approximation for the optimal total data collection delay. For the ring-based protocol, we formulate the problem as a Traveling Salesman Problem (TSP), and use the Christofides Heuristic algorithm to prove a constant factor 1.5 approximation to the optimal solution. We also argue that the tree-based protocol is more suitable for large-scale networks, and the ring-based protocol for small-scale networks.

References

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  1. Token-based data collection protocols for multi-hop underwater acoustic sensor networks: short paper

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    cover image ACM Conferences
    WUWNet '09: Proceedings of the 4th International Workshop on Underwater Networks
    November 2009
    99 pages
    ISBN:9781605588216
    DOI:10.1145/1654130
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    Published: 03 November 2009

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    Author Tags

    1. MST
    2. TSP
    3. UW-ASNs
    4. data collecting protocols
    5. token

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