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Sensors 2011, 11(4), 3527-3544; doi:10.3390/s110403527
Article

On Prolonging Network Lifetime through Load-Similar Node Deployment in Wireless Sensor Networks

1
, 1,* , 1
, 2
 and 3
Received: 30 January 2011; in revised form: 17 March 2011 / Accepted: 21 March 2011 / Published: 24 March 2011
(This article belongs to the Section Physical Sensors)
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Abstract: This paper is focused on the study of the energy hole problem in the Progressive Multi-hop Rotational Clustered (PMRC)-structure, a highly scalable wireless sensor network (WSN) architecture. Based on an analysis on the traffic load distribution in PMRC-based WSNs, we propose a novel load-similar node distribution strategy combined with the Minimum Overlapping Layers (MOL) scheme to address the energy hole problem in PMRC-based WSNs. In this strategy, sensor nodes are deployed in the network area according to the load distribution. That is, more nodes shall be deployed in the range where the average load is higher, and then the loads among different areas in the sensor network tend to be balanced. Simulation results demonstrate that the load-similar node distribution strategy prolongs network lifetime and reduces the average packet latency in comparison with existing nonuniform node distribution and uniform node distribution strategies. Note that, besides the PMRC structure, the analysis model and the proposed load-similar node distribution strategy are also applicable to other multi-hop WSN structures.
Keywords: energy hole; load-similar node distribution; energy balance; network lifetime energy hole; load-similar node distribution; energy balance; network lifetime
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Li, Q.-Q.; Gong, H.; Liu, M.; Yang, M.; Zheng, J. On Prolonging Network Lifetime through Load-Similar Node Deployment in Wireless Sensor Networks. Sensors 2011, 11, 3527-3544.

AMA Style

Li Q-Q, Gong H, Liu M, Yang M, Zheng J. On Prolonging Network Lifetime through Load-Similar Node Deployment in Wireless Sensor Networks. Sensors. 2011; 11(4):3527-3544.

Chicago/Turabian Style

Li, Qiao-Qin; Gong, Haigang; Liu, Ming; Yang, Mei; Zheng, Jun. 2011. "On Prolonging Network Lifetime through Load-Similar Node Deployment in Wireless Sensor Networks." Sensors 11, no. 4: 3527-3544.



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