Arun Kumar Tripathi

An Approach towards Time Synchronization Based Secure Protocol for Wireless Sensor Network

Wireless sensor networks (WSN) have received a lot of attention recently due to their wide applications such as target tracking, environment monitoring, and scientific exploration in dangerous environments. Time synchronization is an important component of sensor networks to provide a common clock time in sensor nodes. Time synchronization protocols provide a mechanism for synchronizing the local clocks of the nodes in a sensor network. Some of the sensor nodes may be malicious, which can disrupt the normal operation of a sensor network. In this paper, we find out malicious nodes and propose time synchronization based secure protocol for a group of non-malicious nodes.

Time Synchronization Protocol in Wireless Sensor Network based on Hash Code

ABSTRACT In current time peoples are switching from wired network to wireless network. This is great achievement for technology. Peoples are using wireless networks, but there is main problem which arises in wireless network is security. Many researches are involved in this field. Wireless sensor networks (WSN) have achieved a lot of consideration recently due to wide range of research applications such as target tracking, environment monitoring, and scientific exploration in dodgy environments. Each sensor node in WSN contains a local clock, required for time synchronization. Time synchronization is a significant module of sensor networks to grant a common clock time in sensor nodes. Some sensor nodes may be harmful, which can disturb the normal function of a sensor network. In this paper, main focus is to uncover malicious nodes and propose time synchronization protocol based on hash code. Keywords Sensor Networks, Security, Time Synchronization, Malicious nodes, .

Detection and mitigation of node replication with pulse delay attacks in wireless sensor network

Wireless sensor network (WSN) is made up two or more interconnected sensor nodes wirelessly. These nodes may be deployed either in open or closed environment. As these nodes communicates wirelessly and deployed in open environment there are always threat of security of nodes as well as data communicated. In order to making secure communication over WSN there should be some security mechanism. In this paper a common security mechanism is proposed to mitigate pulse delay attack and node replication. This mechanism includes detection and then mitigation.

A comparative analysis among routing protocols based on factors affecting the Wireless Sensor Networks

Wireless Sensor Network (WSN) is one of the emerging technological fields due to recent advancements and area of research. The WSN is collection small sensor nodes, which are battery driven and have very less power. Recent research area of WSN focuses on energy consumption, routing, QoS, bandwidth, packet loss etc. This paper focuses on comparative analysis among various existing routing protocols and factors that can affect the protocols in WSN.

A Localization Technique in Wireless Sensor Network based on Angle of Arrival

Wireless sensor network (WSN) consists many sensor nodes across the network. In this paper every sensor node is aware about the physical position of sensor nodes in wireless sensor network. The determination of position of sensor nodes can be released in range measurements including angle of arrival. We proposed a new localization technique based on angle-of- arrival between sensor nodes in a particular area of Wireless sensor network. This technique is derived under the assumption of angle measurement. This article emphasizes the basic localization technique to understand the angle-of-arrival of sensor nodes and to make progress in new and large open area of sensor network localization research.

An approach for secure time synchronization in wireless sensor network

Wireless sensor networks (WSN) have received a lot of attention recently due to their wide applications such as target tracking, environment monitoring, and scientific exploration in dangerous environments. Secure time synchronization is a key service for wireless sensor networks (WSN). Time synchronization protocol synchronizes local clocks of group nodes to a common clock. In group, some of the sensor nodes may be malicious, which may disrupt the normal operation of a sensor network. In this paper a novel secure pair-wise and group-wise approaches for synchronizing the nodes in non-malicious environment are proposed.

Time Synchronization in Wireless Sensor Network based on Level Discovery Phase

Synchronization aims towards synchronizing the local time for some or all nodes in the network is a necessity for many applications. Time synchronization help to find the computer clock difference and real time difference of transmission of message in wireless sensor network. We proposed a new technique based on time synchronization in wireless sensor network. This technique is derived by message exchange of level discovery phase in time synchronization protocol. We explain the basic level discovery phase technique to understand the time of data transmission in between sensor nodes and to make improvement in new and large area of sensor network. Keywordsintruder, pulse delay attack, time synchronization, computer clock difference, real time difference, angle-of arrival.

A Comparative Study of Internet Protocols in MANET

In present era, a growing ease to work in an more sophisticated environment, independent of geographical locations, ease to use resources at distant devices on an anytime-anywhere basis with higher space availability is seen. Taking this into consideration a technology has introduced, namely cloud computing. To emerge with this situation a factor of cloud computing is established that provides an environment with no or minimum infrastructure physically to establish a communication in between the two communicating devices. Besides this, to provide an operating unit of smartness ad-hoc technology along with IPv6 protocol came into existence that is being proven as one of the most encouraging and satisfactory way to use technology and meet today’s IT needs and deeds. To attain this infrastructure OPNET IT GURU EDUCATIONAL VERSION 14.5 Modeler is being used.

A Novel Approach for Cluster Head Selection in Wireless Sensor Network

Wireless Sensor Network (WSN) is one of the emerging technological fields due to recent advancements and area of research. The WSN is collection of small sensor nodes, which run on battery and have very less power. WSN requires various protocols to transmit information from one node to other. This paper focuses on dynamic Cluster Head (CH) selection process in Low Energy Adaptive Cluster Hierarchy (LEAH) protocol. This paper also discusses problems in LEACH protocol and giving a possible solution for it.

An Approach towards Secure and Multihop Time Synchronization in Wireless Sensor Network

Wireless sensor networks (WSN) have been identified as being useful in a variety of domains such as environment monitoring, target tracking, etc. Time synchronization is an important component of sensor networks to provide a common clock time in sensor nodes. Time synchronization protocols provide a mechanism for synchronizing the local clocks of the nodes in a sensor network. Some of the sensor nodes may be malicious, which can disrupt the normal operation of a sensor network. In this paper, we find out malicious nodes out of existing nodes and propose multi-hop time synchronization based secure protocol for a group of non-malicious nodes.