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Sensors 2011, 11(1), 111-137; doi:10.3390/s110100111

Energy-Efficient Receiver-Driven Wireless Mesh Sensor Networks

1,* , 2, 1 and 3
1 Graduate School of Information Science and Technology, Osaka University, 1-5 Yamadaoka, Suita-shi, Osaka 565-0871, Japan 2 School of Comprehensive Rehabilitation, Osaka Prefecture University, 3-7-30 Habikino, Habikino-shi, Osaka 583-8555, Japan 3 Fuji Electric Systems, 1 Fujicho, Hino-shi, Tokyo 191-8502, Japan
* Author to whom correspondence should be addressed.
Received: 18 November 2010 / Revised: 14 December 2010 / Accepted: 15 December 2010 / Published: 23 December 2010
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A major challenge in wireless sensor networks research is energy efficiency. In the intermittent receiver-driven data transmission (IRDT) protocol, which aims at saving energy, communication between two nodes commences when multiple receiver nodes transmit their own IDs and the sender nodes receive them. This protocol can be used to construct a mesh network which is robust against node failure and wireless channel fluctuations. In our work, we improve this protocol by implementing a collision avoidance method for control packets. First, we refer to the probability of control packet collision as a function of the intermittent interval. We then introduce procedures to determine the interval which decreases or minimizes this probability. Afterwards, we include a data aggregation mechanism into IRDT to reduce data transmission frequency and the occurrence of control packet collisions. Through computer simulation, we show that IRDT can offer greater reduction of the average energy consumption compared with RI-MAC and X-MAC, especially at small loads, and we also demonstrate that IRDT with collision avoidance for control packets can attain higher performance than the original IRDT. This method ensures a packet collection ratio of more than 99% and an average energy consumption 38% lower than that of EA-ALPL and 90% lower than that of the original IRDT.
Keywords: sensor network; intermittent operation; simulation; mesh network sensor network; intermittent operation; simulation; mesh network
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Kominami, D.; Sugano, M.; Murata, M.; Hatauchi, T. Energy-Efficient Receiver-Driven Wireless Mesh Sensor Networks. Sensors 2011, 11, 111-137.

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