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IEICE TRANSACTIONS on Information

Utilization-Aware Hybrid Beacon Scheduling in Cluster-Tree ZigBee Networks

Junghee HAN, Jiyong HAN, Dongseup LEE, Changgun LEE

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Summary :

In this paper, we propose an utilization-aware hybrid beacon scheduling method for a large-scale IEEE 802.15.4 cluster-tree ZigBee network. The proposed method aims to enhance schedulability of a target network by better utilizing transmission medium, while avoiding inter-cluster collisions at the same time. To achieve this goal, the proposed scheduling method partially allows beacon overlaps, if appropriate. In particular, this paper answers for the following questions: 1) on which condition clusters can send overlapped beacons, 2) how to select clusters to overlap with minimizing utilization, and 3) how to adjust beacon parameters for grouped clusters. Also, we quantitatively evaluate the proposed method compared to previous works — i.e., non-beacon scheduling and a serialized beacon scheduling algorithm — from several aspects including total duty cycles, packet drop rate, and end-to-end delay.

Publication
IEICE TRANSACTIONS on Information Vol.E98-D No.9 pp.1657-1666
Publication Date
2015/09/01
Publicized
2015/05/28
Online ISSN
1745-1361
DOI
10.1587/transinf.2014EDP7379
Type of Manuscript
PAPER
Category
Information Network

Authors

Junghee HAN
  Korea Aerospace University
Jiyong HAN
  KAIST
Dongseup LEE
  Korean Air Co, Ltd.
Changgun LEE
  Seoul National University

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