An efficient Bi-directional flooding in wireless sensor networks

Authors:
Woosuk Cha;Eun-Mi Kim;Bae-Ho Lee;Gihwan Cho
Affiliations:
Research Center for Ubiquitous Information Appliances, Chonnam National University, Gwangju, South Korea;Dept. of Computer Engineering Chonnam National University, Gwangju, South Korea;Dept. of Electronics and Computer Engineering, Chonnam National University, Gwangju, South Korea;Division of Electronic & Information Engineering, Chonbuk National University, Chonju, South Korea
Venue:
UIC'07 Proceedings of the 4th international conference on Ubiquitous Intelligence and Computing
Year:
2007

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Abstract

Broadcast has been widely used in wireless sensor networks to disseminate information to all reachable nodes. The simplest way of realizing broadcast is via omnidirectional flooding. However, it generates an excessive amount of redundant traffic and exaggerates interference in the shared medium among the neighboring nodes. In order to mitigate these problems, this paper proposes an efficient flooding scheme with directional antennas, called BDF (Bi-Directional Flooding). The BDF scheme limits the propagation range of the packet forwarding to two directions over four, in order to minimize an overlapped area due to omnidirectional flooding. To analyze its performance, BDF has been compared with omnidirectional flooding and NEDF schemes.