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A New Algorithm of Self Organization in Wireless Sensor Network

Wireless Sensor Network 2010年第1期2卷 43-47页

作者： Hemanta Kumar KALITA avijit kar 不详

Self organization is one of the most important characteristics in an Ad-hoc Sensor Network. Thousands of Sensors are deployed in a geographical area randomly without considering the location factor. After deployment, sensors are to self organize themselves to form a network of their own. How well the network is formed determines the life of the whole network as well as the quality of data transmission. Self organization based on clustering has proven to be very useful in this regard. Since hierarchical clustering reduces energy consumption by routing data from one node to another. In this paper, we discuss a new algorithm for self organization of sensors deployed in a geographical area. The algorithm forms clusters of sensors by ordering them using a unique triangulation method. This algorithm not only considers all sensors but also groups them so that their inherent clustering property is preserved.

关键词： Self-Organization Wireless Sensor Network OPTICS

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Quality of Service (QoS) Provisions in Wireless Sensor Networks and Related Challenges

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Wireless Sensor Network 2010年第11期2卷 861-868页

作者： Bhaskar Bhuyan Hiren Kumar Deva Sarma Nityananda Sarma avijit kar Rajib Mall 不详

Wireless sensor networks (WSNs) are required to provide different levels of Quality of Services (QoS) based on the type of applications. Providing QoS support in wireless sensor networks is an emerging area of research. Due to resource constraints like processing power, memory, bandwidth and power sources in sensor networks, QoS support in WSNs is a challenging task. In this paper, we discuss the QoS requirements in WSNs and present a survey of some of the QoS aware routing techniques in WSNs. We also explore the middleware approaches for QoS support in WSNs and finally, highlight some open issues and future direction of research for providing QoS in WSNs.

关键词： Wireless Sensor Network Quality of Service Middleware Routing

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