An Automatic, Adaptive, Ad-hoc Algorithm for Power Conservation in Sensor Networks using Switch-off

Wireless sensor networks are set to revolutionize the way we sense and control our environment. A set of nodes equipped with sensors and capable of communicating with each other in ad-hoc fashion, they relay their data to a monitoring station. What sets them apart from other ad-hoc networks is the periodic nature of the traffic and a critical dependence on a finite source of power, the battery. The battery is a bottleneck to the lifetime of the network and careful use of the battery can increase the lifetime by orders of magnitude. The periodic nature of traffic in a sensor network can be leveraged to switch the transceiver off when not needed, as shown in existing literature. We take up one such switch-off-switch-on scheduling algorithm and show how it can be extended to be robust to dynamic conditions. We then develop an analytical model, which can be used to predict the performance of the algorithm. We also identify a better way of expressing the utility of the network and quantify the benefit accruing from using the algorithm, making it possible to compare different variations of the algorithm and different configuration parameters. The model can also be used to find ways to improve the performance of the algorithm to obtain greater power efficiency.

Author dc:creator

• Visweswara, Sharat

Advisors dc:contributor.advisor

• Mihail Sichitiu, Committee Member
• Mladen Vouk, Committee Member
• Rudra Dutta, Committee Chair

• quasi-periodic traffic
• power conservation
• sensor networks

Statement dc:rights

• I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to NC State University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.

Dc Identifier Other

etd-07282004-121539

OAI record oai:identifier

https://repository.lib.ncsu.edu/server/oai/request?verb=GetRecord&metadataPrefix=dim&identifier=oai%3Arepository.lib.ncsu.edu%3A1840.16%2F2881