Next Article in Journal
Comparison of Moving Boundary and Finite-Volume Heat Exchanger Models in the Modelica Language
Next Article in Special Issue
A Novel Design of Radio Frequency Energy Relays on Power Transmission Lines
Previous Article in Journal
The Misselhorn Cycle: Batch-Evaporation Process for Efficient Low-Temperature Waste Heat Recovery
Article Menu
Issue 5 (May) cover image

Export Article

Open AccessArticle
Energies 2016, 9(5), 338; doi:10.3390/en9050338

A Reconfigurable Formation and Disjoint Hierarchical Routing for Rechargeable Bluetooth Networks

1
Department of Electronics Engineering, Chung Hua University, Hsinchu 300, Taiwan
2
The Institute of Communication Engineering, National Chiao Tung University, Hsinchu 300, Taiwan
*
Author to whom correspondence should be addressed.
Academic Editor: Hongjian Sun
Received: 16 March 2016 / Revised: 17 April 2016 / Accepted: 27 April 2016 / Published: 5 May 2016
(This article belongs to the Special Issue Wireless Rechargeable Sensor Networks)
View Full-Text   |   Download PDF [4638 KB, uploaded 5 May 2016]   |  

Abstract

In this paper, a reconfigurable mesh-tree with a disjoint hierarchical routing protocol for the Bluetooth sensor network is proposed. First, a designated root constructs a tree-shaped subnet and propagates parameters k and c in its downstream direction to determine new roots. Each new root asks its upstream master to start a return connection to convert the first tree-shaped subnet into a mesh-shaped subnet. At the same time, each new root repeats the same procedure as the designated root to build its own tree-shaped subnet, until the whole scatternet is formed. As a result, the reconfigurable mesh-tree constructs a mesh-shaped topology in one densely covered area that is extended by tree-shaped topology to other sparsely covered areas. To locate the optimum k layer for various sizes of networks, a peak-search method is introduced in the designated root to determine the optimum mesh-tree configuration. In addition, the reconfigurable mesh-tree can dynamically compute the optimum layer k when the size of the network changes in the topology maintenance phase. In order to deliver packets over the mesh-tree networks, a disjoint hierarchical routing protocol is designed during the scatternet formation phase to efficiently forward packets in-between the mesh-subnet and the tree-subnet. To achieve the energy balance design, two equal disjoint paths are generated, allowing each node to alleviate network congestion, since most traffic occurs at the mesh-subnet. Simulation results show that the joint reconfigurable method and routing algorithm generate an efficient scatternet configuration by achieving better scatternet and routing performance than BlueHRT (bluetooth hybrid ring tree). Furthermore, the disjoint routing with rechargeable battery strategy effectively improves network lifetime and demonstrates better energy efficiency than conventional routing methods. View Full-Text
Keywords: bluetooth; scatternet formation; topology configuration; routing; energy harvesting bluetooth; scatternet formation; topology configuration; routing; energy harvesting
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Yu, C.-M.; Lee, Y.-H. A Reconfigurable Formation and Disjoint Hierarchical Routing for Rechargeable Bluetooth Networks. Energies 2016, 9, 338.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top