An interference free cluster-based TDMA protocol for wireless sensor networks

Authors:
Gong Haigang;Liu Ming;Wang Xiaomin;Chen Lijun;Xie Li
Affiliations:
School of Computer Science and Engineering, University of Electronic Science and Technology of China, P.R. China;Department of Computer Science and Technology, Nanjing University;School of Computer Science and Engineering, University of Electronic Science and Technology of China, P.R. China;Department of Computer Science and Technology, Nanjing University;Department of Computer Science and Technology, Nanjing University
Venue:
WASA'06 Proceedings of the First international conference on Wireless Algorithms, Systems, and Applications
Year:
2006

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Abstract

In this paper, we propose IFCT protocol, an Interference Free Cluster-based TDMA protocol for wireless sensor network. IFCT protocol employs two schedules to avoid transmission interference. The first schedule assigns different frame number to neighboring clusters so that neighboring clusters could collect their member's data during different frames, avoiding inter-cluster interference. The second schedule allocates different slots to cluster members and they sending their data to their respectively cluster heads during different slots to avoid intra-cluster interference. Simulation results show that IFCT performs better than HEED, which is a clustering protocol based on TDMA. In addition, IFCT is more practical than HEED which uses CDMA code to avoid inter-cluster interference for deploying large-scale wireless sensor networks.