The emergence of wireless sensor networks (WSN) as one of the dominant technology trends in the coming decades has posed numerous unique challenges to researchers. The sensing technology combined with processing power and wireless communication makes it lucrative for being exploited in abundance in future. The inclusion of wireless communication technology also incurs various types of security ...

Wireless sensor networks are expected to automatically monitor the ecological evolution and wildlife habits in forests. Low-power links (transceivers) are often adopted in wireless sensor network applications, in order to save the precious sensor energy and then achieve long-term, unattended monitoring. Recent research has presented some performance characteristics of such low-power wireless li...

Wireless Sensor gains popularity from last few decades due to their viability in hostile environment. Based on types of node sensor networks are categorized as WSN and MWSN. Wireless Sensor Network with mobile nodes faces numerous challenges in terms of energy efficient network, prolonged lifetime and network traffic. This paper gives an overview of efficient routing protocols suitable for wire...

Wireless Sensor Network (WSN) is an emerging technology that shows great promise for various futuristic applications both for mass public and military. These small, low-cost, low-powers, multifunctional sensor nodes can communicate in short distances. There is currently enormous research potential in the field of wireless sensor network security. The major challenge for employing any efficient ...

In the years, routing protocols in wireless sensor networks (WSN) have been substantially investigated by researches Most state-ofthe-art surveys have focused on reviewing of wireless sensor network .In this paper we review the existing secure geographic routing protocols for wireless sensor network (WSN) and also provide a qualitative comparison of them. KeywordsWireless Sensor Network, Sensor...

When wireless sensors are used to keep an area under surveillance the most critical issue is the quality of the deployment. In this paper, we study the quality of the deployment in surveillance wireless sensors by proposing several quality measures. The field is modelled as a grid and a probabilistic sensor model is utilized to determine the coverage area which is referred to as the iso-sensing...

In this paper, a virtual token passing protocol has been proposed, in which sensor nodes join in the different subnets according to the received signal strength and the number of sensor nodes in the subnet to decrease the transmitting power to reduce energy consumption as far as possible. Secondly, router nodes adopt different RF to polling for new sensor node and neighboring subnets use differ...

In this article, the authors have performed a comprehensive survey on Wireless Sensor Network (WSN) Security. The emergence of sensor networks as one of the dominant technology trends in the coming decades has posed numerous unique challenges to researchers. These networks are likely to be composed of hundreds, and potentially thousands of tiny sensor nodes, functioning autonomously, and in man...

In this paper we propose wireless sensor network architecture with layered protocols, targeting different aspects of the awareness requirements in wireless sensor networks. Under such a unified framework, we pay special attention to the most important awareness issues in wireless sensor networks: namely dynamic awareness, energy awareness and spatiotemporal awareness. First, we propose the spat...

In Wireless Sensor Network (WSN), the nodes have limitations in terms of energy-constraint, unreliable links, and frequent topology change. In this paper we propose an energy-aware routing protocol, that outperforms the existing ones with an enhanced network lifetime and more reliable data delivery. Major issues in the design of a routing strategy in wireless sensor networks are to make efficie...