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DPLC: Dynamic packet length control in wireless sensor networks

Authors Dong, W.
Liu, X.
Chen, C.
He, Y.
Chen, G.
Liu, Y.
Bu, J.
Issue Date 2010
Source Proceedings - IEEE INFOCOM , 2010
Summary Previous packet length optimizations for sensor networks often employ a fixed optimal length scheme, while in this study we present DPLC, a Dynamic Packet Length Control scheme. To make DPLC more efficient in terms of channel utilization, we incorporate a lightweight and accurate link estimation method that captures both physical channel conditions and interferences. We further provide two easy-to-use services, i.e., small message aggregation and large message fragmentation, to facilitate upper-layer application programming. The implementation of DPLC based on TinyOS 2.1 is lightweight, with respect to computation, memory, and header overhead. Our experiments using a real indoor testbed running CTP show that DPLC results in a 13% reduction in transmission overhead and a 41.8% reduction in energy consumption compared with the original protocol, and a 21% reduction in transmission overhead and a 15.1% reduction in energy consumption compared with simple aggregation schemes. ©2010 IEEE.
ISSN 0743-166X
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Language English
Format Conference paper
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