A location-aware multicasting protocol for Bluetooth Location Networks

  • Authors:

  • Chih-Yung Chang;Kuei-Ping Shih;Chung-Hsien Hsu;Hung-Chang Chen

  • Affiliations:

  • Department of Computer Science and Information Engineering, Tamkang University, Taipei, Taiwan;Department of Computer Science and Information Engineering, Tamkang University, Taipei, Taiwan;Department of Communication Engineering, National Chiao-Tung University, Hsinchu, Taiwan;Department of Computer Science and Information Engineering, Tamkang University, Taipei, Taiwan

  • Venue:
  • Information Sciences: an International Journal
  • Year:
  • 2007

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Abstract

Bluetooth Location Network (BLN) is a Bluetooth radio network that is composed of some mobile Bluetooth devices and static Bluetooth units, and is established at the system initialization to form a spontaneous network topology. In a BLN, a multicast service is defined as the periodical delivering of messages from a Service Server to a set of mobile devices which are the multicast members predefined by the Service Server. Several multicast protocols have been proposed for the Ad-Hoc networks, but they create an inefficient multicast tree for the BLN due to the existing differences in the radio characteristics between Ad-Hoc and Bluetooth radio networks. The present paper analyzes these differences and proposes a novel multicasting protocol for constructing an efficient multicast tree in a BLN. The proposed protocol constructs a multicast tree with good features which include the shortest path, a higher degree of path sharing, and fewer forwarding nodes. Simulation results reveal that the proposed multicast protocol outperforms the existing multicast protocols in the BLN.