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Conference Paper Multi-Channel TDMA Link Scheduling for Wireless Multi-hop Sensor Networks
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Authors
Junhee Lee, Wun-Cheol Jeong
Issue Date
2015-10
Citation
International Conference on Information and Communication Technology Convergence (ICTC) 2015, pp.630-635
Language
English
Type
Conference Paper
Abstract
In this paper, we propose the conflict-free TDMA link scheduling algorithm to minimize slot length in multi-channel operation wireless multi-hop sensor networks. We exploit conflict graph model to schedule conflict-free transmissions for all links in the network. The min-max optimization is used to find minimum slot length including all link transmissions. Our proposed algorithm also minimizes the end-to-end delay by ordering of link transmissions. We evaluate the performance of our proposed algorithm in terms of required slot length and energy consumption in IEEE802.15.4e multi-superframe structure. Our numerical results show that the improvement of performance is noticeable compare with previous works while consumes least energy to deliver the frame on the multi-hop communication in large networks.
KSP Keywords
End to End(E2E), End-To-end delay, Graph model, Large network, Min-max optimization, Minimum slot length, Multi-Hop communication, Numerical results, Scheduling algorithm, Sensor networks, conflict graph