DocumentCode :
3497841
Title :
Joint Scheduling and Clustering to Balance Power Consumption for High-Node-Density Sensor Networks with Directional Data Traffic
Author :
Wei, Dali ; Chan, Anthony H.
Author_Institution :
Dept. of Electr. Eng., Univ. of Cape Town, Cape Town
fYear :
2007
fDate :
21-25 Sept. 2007
Firstpage :
2727
Lastpage :
2730
Abstract :
Many scheduling and clustering schemes have been proposed for sensor networks to improve energy efficiency. However, most traditional scheduling and clustering schemes do not take into account directional and uneven data traffic, which makes higher burden nodes drain energy more rapidly. This paper combines clustering and scheduling technologies to improve energy efficiency for homogeneous sensor networks with high node density by balancing power consumption throughout the network. In this algorithm, because the node density is high, only the clusterhead keeps active, while others are in sleep state with negligible power consumption. By rotating the role of the clusterhead, the power consumption is balanced among the nodes. Furthermore, the clusters are partitioned in such a way that their total energy stored is proportional to their burdens in order to equalize cluster lifetime. Simulation results show that the proposed algorithm indeed improves energy efficiency.
Keywords :
data communication; power consumption; scheduling; telecommunication traffic; wireless sensor networks; balance power consumption; directional data traffic; energy efficiency; high-node-density sensor networks; homogeneous sensor networks; joint scheduling and clustering scheme; wireless sensor networks; Cities and towns; Clustering algorithms; Energy consumption; Energy efficiency; Floods; Partitioning algorithms; Relays; Scheduling algorithm; Sleep; Telecommunication traffic;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1311-9
Type :
conf
DOI :
10.1109/WICOM.2007.677
Filename :
4340452
Link To Document :
بازگشت