In a wireless sensor network, sensor devices are connected by unreliable radio channels. Thus, the reliable packet delivery is an important design challenge. The existing sensor-to-base reliable transport mechanism, however, depends on a centralized manager node, incurring large control overheads of synchronizing reporting frequencies. In this paper, we present a decentralized reliable transport (DRT) with two novel decentralized reliability control schemes. First, we propose an independent reporting scheme where each sensor node stochastically makes reporting decisions. Second, we describe a cooperative reporting scheme where every sensor node implicitly cooperates with its neighbors for the uniform reporting. In the reporting step, DRT uses a reliable MAC channel, which is specifically optimized for reducing the energy dissipation. Experimental results show that DRT satisfies the desired delivery rate reliably in a decentralized manner while it significantly reduces the energy consumption of the radio device and the communication time. © Springer-Verlag Berlin Heidelberg 2004.
CITATION STYLE
Yim, K. S., Kim, J., & Koh, K. (2004). An energy-efficient reliable transport for wireless sensor networks. Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 3090, 54–64. https://doi.org/10.1007/978-3-540-25978-7_6
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