Hariharan Balakrishnan

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Researchers have been studying wireless networks for a number of years and have developed fairly sophisticated protocols using clustering, multi-hop routing, and direct communication approaches. We are developing communication protocols for sensor networks, which differ from traditional wireless networks in both the function that these networks serve and(More)
In recent advances, many routing protocols have been proposed based on heterogeneity with main research goals such as achieving the energy efficiency, lifetime, deployment of nodes, fault tolerance, latency, in short high reliability and robustness. In this paper, we have proposed an energy efficient cluster head scheme, for heterogeneous wireless sensor(More)
A wireless sensor network is a resource constraint network, in which all sensor nodes have limited resources. In order to save resources and energy, data must be aggregated, and avoid amounts of traffic in the network. The aim of data aggregation is that eliminates redundant data transmission and enhances the life time of energy in wireless sensor network.(More)
Preserving the consumed energy of each node for increasing the network lifetime is an important goal that must be considered when developing a routing protocol for wireless sensor networks. The main objective of cluster-based routing protocol is to efficiently maintain the energy consumption of sensor nodes by involving them in multi-hop communication(More)
With the drastic growth of Internet and VLSI design, applications of WSNs are increasing tremendously that ranges from environmental monitoring, habitat monitoring, traffic surveillance to battle fields. In WSN a number of tiny sensor nodes managed by small batteries are deployed in a hostile environment to monitor the physical parameters. During(More)
— The Wireless sensor network (WSN) consisting of a large number of sensors are effective for gathering data in a variety of environments. Sensors are usually randomly deployed where battery replacement or recharge is difficult or even impossible to be performed. In this paper, we first completely analyze the basic distributed clustering routing protocol(More)
Software Defined Networking (SDN) is a paradigm where a software based controller governs the overall network behavior. SDN promotes centralization of network by separating the networks control plane from its data plane. OpenFlow, one of the techniques of SDN technology, is a new approach to networking. This paper discusses application aware routing and(More)
In recent years, MANET become the foremost encouraging area for innovative work of the wireless communication system. It has inherited many vulnerabilities of wireless network because of open medium and self-organizing capability of nodes in MANETs. The intrusion detection system continuously observing for doubtful actions inside a system and then take(More)
Wireless sensor networks have a broad variation of applications within the surveillance, military, atmosphere monitoring and medical fields. Coverage and connectivity of sensor networks demonstrates how well a region is monitored. The coverage issues have been studied extensively. Particularly the coverage with respect to connectivity and network lifetime(More)