[1] Li WenfengShao ZhenhongShen Lianfeng,. Cooperative algorithm for improving network connectivityin clustered wireless sensor networks [J]. Journal of Southeast University (English Edition), 2011, 27 (1): 1-7. [doi:10.3969/j.issn.1003-7985.2011.01.001]

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Cooperative algorithm for improving network connectivityin clustered wireless sensor networks()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

27

Issue:

2011 1

Page:

1-7

Research Field:

Information and Communication Engineering

Publishing date:

2011-03-30

Info

Title:

Cooperative algorithm for improving network connectivityin clustered wireless sensor networks

Author(s):

Li WenfengShao ZhenhongShen Lianfeng

National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China

Keywords:

wireless sensor network;  coverage;  cooperative communication;  operation time

PACS:

TN915

DOI:

10.3969/j.issn.1003-7985.2011.01.001

Abstract:

In order to improve network connectivity in clustered wireless sensor networks, a node cooperative algorithm based on virtual antenna arrays is proposed. All the nodes in the network are assumed to be clustered via Poisson Voronoi tessellation(PVT). The activation of the node cooperative algorithm is determined by the cluster heads(CHs)according to communication links. When the cooperative algorithm is activated, the CH selects cooperative nodes(CNs)from its members to form a virtual antenna array. With the cooperation, nodes can extend the inter-cluster communication range to directly contact with further nodes after a coverage hole is detected, or compensate for channel gains while inter-cluster transmission fails due to deep channel fading. Simulation results show that the proposed algorithm achieves better network connectivity and energy efficiency. It can reduce outage probability, sustain network connectivity and maintain operations as long as possible, which prolongs network operation time.

References:

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Memo

Memo:

Biographies: Li Wenfeng(1975—), male, graduate; Shen Lianfeng(corresponding author), male, professor, lfshen@seu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No. 60872004, 60972026), the Important National Science and Technology Specific Projects(No.2010ZX03006-002-01), the Research Fund of the National Mobile Communications Research Laboratory of Southeast University(No.2010A08).
Citation: Li Wenfeng, Shao Zhenhong, Shen Lianfeng.Cooperative algorithm for improving network connectivity in clustered wireless sensor networks[J].Journal of Southeast University(English Edition), 2011, 27(1):1-7.[doi:10.3969/j.issn.1003-7985.2011.01.001]

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