Small-World-Network Model Based Routing Method for Wireless Sensor Networks

In order to reduce the average path length of the wireless sensor networks (WSNs) and save the energy, in this paper, the concept of the small world is introduced into the routing designs of WSNs. So a new small world routing protocol (SWRP) is proposed. By adding a few short cut links, which are confined to a fraction of the network diameter, we construct a small world network. Then the protocol finds paths through recurrent propagations of weak and strong links. The simulation results indicate that SWRP reduces the energy consumption effectively and the average delay of the data transmission, which leads to prolong the lifetime of both the nodes and the network.

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An Effective Self-Adapting Localization Algorithm in Wireless Sensor Networks

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.58-60.1013 ◽

2011 ◽

Vol 58-60 ◽

pp. 1013-1017 ◽

Cited By ~ 1

Author(s):

Fu Fang Li ◽

Fei Luo ◽

Jian Xiong Wang ◽

De Yu Qi ◽

Guo Wen Xie

Keyword(s):

Wireless Sensor Networks ◽

Sensor Networks ◽

Network Theory ◽

Hot Spot ◽

Small World ◽

Wireless Sensor ◽

Small World Network ◽

Localization Algorithm ◽

Challenging Problem ◽

Measured Distance

Research on nodes localization in Wireless Sensor Networks (WSN) has been a hot spot in recent years. How to improve the reliability and accuracy of nodes localization is a hard and challenging problem in the area, and is far to be solved satisfactorily. This paper proposes an effective self-adapting localization algorithm in WSN based on optimized RSSI and DV-Distance algorithm. In order to enhance the precision of localization, the presented algorithm introduces an effective method to reduce the error of RSSI-measured distance. The algorithm also uses Small-World-Network theory to help select beacon nodes from localized normal nodes, so as to raise the performance and efficiency. Experimental results show that the algorithm has effectively improved the accuracy, self adaptivity, performance and efficiency of nodes localization in WSN.

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Evolution of Scale-Free Wireless Sensor Networks with Feature of Small-World Networks

Complexity ◽

10.1155/2017/2516742 ◽

2017 ◽

Vol 2017 ◽

pp. 1-15 ◽

Cited By ~ 7

Author(s):

Ying Duan ◽

Xiuwen Fu ◽

Wenfeng Li ◽

Yu Zhang ◽

Giancarlo Fortino

Keyword(s):

Wireless Sensor Networks ◽

Sensor Networks ◽

Small World ◽

Wireless Sensor ◽

Small World Network ◽

Scale Free Network ◽

Theoretical Derivation ◽

Scale Free ◽

Cluster Heads ◽

Free Network

Scale-free network and small-world network are the most impacting discoveries in the complex networks theories and have already been successfully proved to be highly effective in improving topology structures of wireless sensor networks. However, currently both theories are not jointly applied to have further improvements in the generation of WSN topologies. Therefore, this paper proposes a cluster-structured evolution model of WSNs considering the characteristics of both networks. With introduction of energy sensitivity and maximum limitation of degrees that a cluster head could have, the performance of our model can be ensured. In order to give an overall assessment of lifting effects of shortcuts, four placement schemes of shortcuts are analyzed. The characteristics of small-world network and scale-free network of our model are proved via theoretical derivation and simulations. Besides, we find that, by introducing shortcuts into scale-free wireless sensor network, the performance of the network can be improved concerning energy-saving and invulnerability, and we discover that the schemes constructing shortcuts between cluster heads and the sink node have better promoted effects than the scheme building shortcuts between pairs of cluster heads, and the schemes based on the preferential principle are superior to the schemes based on the random principle.

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A Small World Model Based on Multi-Interface and Multi-Channel to Design Heterogeneous Wireless Sensor Networks

2010 IEEE Global Telecommunications Conference GLOBECOM 2010 ◽

10.1109/glocom.2010.5684196 ◽

2010 ◽

Cited By ~ 1

Author(s):

Daniel L. Guidoni ◽

Azzedine Boukerche ◽

Fernanda S. H. Souza ◽

Raquel A. F. Mini ◽

Antonio A. F. Loureiro

Keyword(s):

Wireless Sensor Networks ◽

Sensor Networks ◽

Small World ◽

Wireless Sensor ◽

World Model ◽

Model Based ◽

Heterogeneous Wireless Sensor Networks

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A Model-Based Approach for Adaptable Middleware Evolution in WSN Platforms

Journal of Sensor and Actuator Networks ◽

10.3390/jsan10010020 ◽

2021 ◽

Vol 10 (1) ◽

pp. 20

Author(s):

Walter Tiberti ◽

Dajana Cassioli ◽

Antinisca Di Marco ◽

Luigi Pomante ◽

Marco Santic

Keyword(s):

Wireless Sensor Networks ◽

Sensor Networks ◽

Embedded System ◽

Operating Systems ◽

Parallel Evolution ◽

Wireless Sensor ◽

New Techniques ◽

Model Based ◽

And Performance ◽

Hardware Platforms

Advances in technology call for a parallel evolution in the software. New techniques are needed to support this dynamism, to track and guide its evolution process. This applies especially in the field of embedded systems, and certainly in Wireless Sensor Networks (WSNs), where hardware platforms and software environments change very quickly. Commonly, operating systems play a key role in the development process of any application. The most used operating system in WSNs is TinyOS, currently at its TinyOS 2.1.2 version. The evolution from TinyOS 1.x and TinyOS 2.x made the applications developed on TinyOS 1.x obsolete. In other words, these applications are not compatible out-of-the-box with TinyOS 2.x and require a porting action. In this paper, we discuss on the porting of embedded system (i.e., Wireless Sensor Networks) applications in response to operating systems’ evolution. In particular, using a model-based approach, we report the porting we did of Agilla, a Mobile-Agent Middleware (MAMW) for WSNs, on TinyOS 2.x, which we refer to as Agilla 2. We also provide a comparative analysis about the characteristics of Agilla 2 versus Agilla. The proposed Agilla 2 is compatible with TinyOS 2.x, has full capabilities and provides new features, as shown by the maintainability and performance measurement presented in this paper. An additional valuable result is the architectural modeling of Agilla and Agilla 2, missing before, which extends its documentation and improves its maintainability.

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