Clustering-Based Low Power Adaptive Wireless Sensor Network Protocol Architecture
Date Issued
2005
Date
2005
Author(s)
Cheng, Arn-Min
DOI
en-US
Abstract
To extend the lifetime of the wireless sensor network, the technique of clustering is an effective way to achieve the power conservation, network scalability and load balance. In this paper, we propose the architecture of the wireless sensor network with multiple levels of transmission power and take advantage the concept of hierarchy and clustering to have different cluster ranges among the chosen clusterheads. A network with clusters of different ranges of the covered area can have better topology control for reducing the unnecessary interference and save large amount of energy. Moreover, it can also improve the network load balance for the condition of non-homogeneous dispersion of sensor nodes. Meanwhile, each cluster will choose the clusterhead in accordance with the moving speed, residual energy, intra-cluster communication cost and decide the minimum power of the cluster range for the clusterhead to cover the entire cluster area of which it takes charge. On the other hand, the non-clusterheads can choose its own minimum transmission power level according to the distance between itself and the clusterhead. In addition, the non-clusterheads will enter sleeping state after a period of idle time to save the unnecessarily wasted power.In addition, we also investigate the tradeoff between energy consumption and throughput for the cluster-based hierarchical model with one-hop model and multi-hop model inside a cluster. Also we provide an adaptive hand-over mechanism for the re-election of the clusterhead which can prolong the network lifetime.
Subjects
無線網路
低功率
網路拓撲
叢集演算法
休眠模式
Wireless
Sensor Network
Low Power
Energy
Topology Control
Clustering
Type
thesis
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