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Power efficient data gathering and aggregation in wireless sensor networks (2003)
| Venue: | SIGMOD Record |
| Citations: | 63 - 2 self |
BibTeX
@ARTICLE{Tan03powerefficient,
author = {Hüseyin Özgür Tan},
title = {Power efficient data gathering and aggregation in wireless sensor networks},
journal = {SIGMOD Record},
year = {2003},
pages = {66--71}
}
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Abstract
Abstract — Recent developments in processor, memory and radio technology have enabled wireless sensor networks which are deployed to collect useful information from an area of interest. The sensed data must be gathered and transmitted to a base station where it is further processed for end-user queries. Since the network consists of low-cost nodes with limited battery power, power efficient methods must be employed for data gathering and aggregation in order to achieve long network lifetimes. In an environment where in a round of communication each of the sensor nodes has data to send to a base station, it is important to minimize the total energy consumed by the system in a round so that the system lifetime is maximized. With the use of data fusion and aggregation techniques, while minimizing the total energy per round, if power consumption per node can be balanced as well, a near optimal data gathering and routing scheme can be achieved in terms of network lifetime. So far, besides the conventional protocol of direct transmission, two elegant protocols called LEACH and PEGASIS have been proposed to maximize the lifetime of a sensor network. In this paper, we propose two new algorithms under name PEDAP (Power Efficient Data gathering and Aggregation Protocol), which are near optimal minimum spanning tree based routing schemes, where one of them is the power-aware version of the other. Our simulation results show that our algorithms perform well both in systems where base station is far away from and where it is in the center of the field. PEDAP achieves between 4x to 20x improvement in network lifetime compared with LEACH, and about three times improvement compared with PEGASIS. I.
Keyphrases
power efficient data gathering wireless sensor network base station total energy network lifetime near optimal data gathering elegant protocol useful information sensor network system lifetime power-aware version aggregation protocol limited battery power direct transmission abstract recent development conventional protocol long network lifetime sensor node time improvement sensed data algorithm perform power consumption name pedap data gathering end-user query simulation result radio technology data fusion new algorithm aggregation technique low-cost node power efficient method
