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Low power coordination in wireless ad-hoc networks

Published: 25 August 2003 Publication History
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    Distributed wireless ad-hoc networks (DWANs) pose numerous technical challenges. Among them, two are widely considered as crucial: autonomous localized operation and minimization of energy consumption. We address the fundamental problem of how to maximize life-time of the network by using only local information while preserving network connectivity. We start by introducing the Care-Free Sleep (CS) Theorem that provides provably optimal necessary and sufficient conditions for a node to turn off its radio while ensuring that global connectivity is not affected.The CS theorem is the basis for an efficient localized algorithm that decides which node will turn its radio off, and for how long. The effectiveness of the approach is demonstrated using numerous simulations of the performance of the algorithm over a wide range of network parameters.

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    cover image ACM Conferences
    ISLPED '03: Proceedings of the 2003 international symposium on Low power electronics and design
    August 2003
    502 pages
    ISBN:158113682X
    DOI:10.1145/871506
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    Publication History

    Published: 25 August 2003

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    Author Tags

    1. coordination
    2. low-power
    3. wireless ad-hoc network

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    ISLPED '03 Paper Acceptance Rate 90 of 221 submissions, 41%;
    Overall Acceptance Rate 398 of 1,159 submissions, 34%

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    • (2006)An Enhanced IEEE 802.11 MAC Algorithm for Tradeoff between Delay and Energy-Consumption2006 IEEE International Conference on Communications10.1109/ICC.2006.255696(3935-3940)Online publication date: Jun-2006
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