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Distributed and Cooperative Link Scheduling for Large-Scale Multihop Wireless Networks

EURASIP Journal on Wireless Communications and Networking volume 2007, Article number: 034716 (2007) Cite this article

Abstract

A distributed and cooperative link-scheduling (DCLS) algorithm is introduced for large-scale multihop wireless networks. With this algorithm, each and every active link in the network cooperatively calibrates its environment and converges to a desired link schedule for data transmissions within a time frame of multiple slots. This schedule is such that the entire network is partitioned into a set of interleaved subnetworks, where each subnetwork consists of concurrent cochannel links that are properly separated from each other. The desired spacing in each subnetwork can be controlled by a tuning parameter and the number of time slots specified for each frame. Following the DCLS algorithm, a distributed and cooperative power control (DCPC) algorithm can be applied to each subnetwork to ensure a desired data rate for each link with minimum network transmission power. As shown consistently by simulations, the DCLS algorithm along with a DCPC algorithm yields significant power savings. The power savings also imply an increased feasible region of averaged link data rates for the entire network.

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Authors and Affiliations

  1. Department of Electrical Engineering, University of California, Riverside, CA, 92521, USA

    Kezhu Hong & Yingbo Hua

  2. Army Research Laboratory, 2800 Power Mill Road, Adelphi, MD, 20783, USA

    Ananthram Swami

Authors
  1. Kezhu Hong
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  2. Yingbo Hua
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  3. Ananthram Swami
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Correspondence to Yingbo Hua.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License ( https://creativecommons.org/licenses/by/2.0 ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Hong, K., Hua, Y. & Swami, A. Distributed and Cooperative Link Scheduling for Large-Scale Multihop Wireless Networks. J Wireless Com Network 2007, 034716 (2007). https://doi.org/10.1155/2007/34716

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  • DOI: https://doi.org/10.1155/2007/34716

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