Saving Energy by Adjusting Transmission Power in Wireless Sensor Networks
Rowe, Neil C.
MetadataShow full item record
Wireless sensor networks (WSNs) have attracted a great deal of study due to the low cost of sensors and their wide range of applications. Most of the sensors used so far are point sensors which have disc-shaped sensing and communication areas. Energy-efficient communication is an important issue in WSNs because of the limited power resource and the inconvenience to recharge sensor batteries frequently. In this paper, we propose distributed algorithms to reduce communication energy consumption in WSNs by minimizing the total transmission power of sensors while maintaining the connectivity of the network. We first develop a distributed algorithm called DTRNG (Determine the Transmission power using RNG) based on RNG (Relative Neighborhood Graph) to let each sensor determine its transmission power. Then we point out that although RNG can maintain the connectivity of the network, it is not adequate to minimize the total transmission power of sensors. So we enhance it to algorithm DTCYC (Determine the Transmission power by removing the largest edge in CYCles). Mathematical proofs show that the result of the DTCYC algorithm is a minimal spanning tree, which can not only minimize the total sensor transmission power but maintain the connectivity of the network as well. Therefore, DTCYC algorithm is efficient in saving energy and can thus prolong the lifetime of WSNs.
This full text paper was peer reviewed at the direction of IEEE Communications Society subject matter experts for publication in the IEEE Globecom 2011 proceedings.
Showing items related by title, author, creator and subject.
Chen, Xiao; Rowe, Neil C. (Monterey, California. Naval Postgraduate School, 2011);Nowadays wireless sensor networks (WSNs) have attracted a great deal of study due to their low cost and widerange applications. Most of the sensors used so far are point sensors which have a disc-shaped sensing region. ...
Teo, Cheng Kiat Amos (Monterey California. Naval Postgraduate School, 2005-12);The ability to sense and monitor a variety of environmental conditions using un-tethered sensors offers a significant change over traditional sensing systems that need to be strategically positioned and have topologies ...
Integration of Wireless Sensor Networks Into a Commercial Off-the-Shelf (COTS) Multimedia Network. Molineux, Jeffrey S. ;As the primary military operating environment shifts from the traditional battlefields to a more diverse urban environment, the use of remote wireless sensors is increasing. Traditional development and procurement methods ...