Papers by Hemappa Basappa
Power conservation is important in sensor devices since battery life is usually one of the critic... more Power conservation is important in sensor devices since battery life is usually one of the critical components in extending the life time of the sensor network. Cluster technology that enables a group of sensors working closely to form a single cluster head, has been a booming research field in sensor network. When cluster heads cooperate with each other to forward their data to the base station, the cluster heads closer to the base station are burdened with heavy relay traffic and tend to die early, leaving areas of the network uncovered and causing network partition. To address the problem, we propose an event driven packet processing and redundant data eradication using in-network data processing before communicating such data to cluster head or sink. The network nodes are assumed to generate periodic data packets that are reported to the destination via multi hop or single hop routing based on distance to the cluster head. The theoretical analysis and the simulation results reveal that our data reporting and routing schemes reduces the transmission loss and increase the network life time.
International Journal of Computer Applications, 2014
Wireless sensor networks consist of tiny sensors powered by low power battery and in most of the ... more Wireless sensor networks consist of tiny sensors powered by low power battery and in most of the applications sensors are deployed to monitor the unattended areas. As sensor nodes are energy constrained in the network, energy efficiency is an important factor and should be considered during the protocol design phase. In this article we propose a robust, poweraware in-network clustering protocol to increase the network lifetime, which is based on parameters like residual energy, distance to the base station and proximity of the base station. The proposed cluster head selection protocol offers an efficient way of balancing the energy among member nodes of the cluster with considerably lesser energy consumption. Proposed novel algorithm is experimented in Matlab simulator and results shows significant improvements when compared to LEACH algorithm. The performance is evaluated by considering the impact of energy balancing among the nodes and network lifetime efficiency in WSN.
Wireless sensor networks consist of tiny sensors powered by low power battery and in most of the ... more Wireless sensor networks consist of tiny sensors powered by low power battery and in most of the applications sensors are deployed to monitor the unattended areas. As sensor nodes are energy constrained in the network, energy efficiency is an important factor and should be considered during the protocol design phase. In this article we propose a robust, poweraware in-network clustering protocol to increase the network lifetime, which is based on parameters like residual energy, distance to the base station and proximity of the base station. The proposed cluster head selection protocol offers an efficient way of balancing the energy among member nodes of the cluster with considerably lesser energy consumption. Proposed novel algorithm is experimented in Matlab simulator and results shows significant improvements when compared to LEACH algorithm. The performance is evaluated by considering the impact of energy balancing among the nodes and network lifetime efficiency in WSN.
Energy constrained sensor nodes are preloaded with the program code and data, which are usually u... more Energy constrained sensor nodes are preloaded with the program code and data, which are usually unattended after deployment. Due to change in user requirements and environmental changes, preloaded software and firmware deployed in sensor nodes have to be reprogrammed on large number of sensor nodes to resolve the post deployment issues. It's not easy and may be impossible to reach the remote sensor nodes deployed in hostile or private environment. The data collection from the sensor node to sink is equally important to disseminate the required program code and data from sink or host to sensors for reprogramming the new version of the software. The energy efficient dissemination of required program code and data to all the nodes in wireless sensor network is challenging task. Many WSN has proposed regular intervals of sleep-wake up of sensor nodes to enhance the lifetime of the sensor network. We propose an energy efficient gateway based remote reprogramming of the required software/firmware in sleep scheduled wireless sensor network without affecting the functionality of the wireless sensor network. The theoretical analysis and the simulation results reveal that our proposed scheme effectively transmit and reprogramming the software on deployed sensors by consuming less power resource and increases the network life time.
In this paper we propose an energy efficient Aggregation Node selection for event data collection... more In this paper we propose an energy efficient Aggregation Node selection for event data collection and a novel MAC protocol. We have integrated these two algorithms in wireless sensor network to extend the lifetime of the network. Our protocol is designed for event-driven and low power embedded sensor networks. Idle listening for radio traffic is more expensive compared to sending the sensed data in wireless sensor network. In an event driven sensor network multiple sensors may detect the same event and all of them contend for medium access to transmit the data, and it may lead to network congestion and retransmission of a packet. Our proposed wireless sensor network selects the Aggregation Node to collect the event data from all the event affected nodes. Aggregation Node computes the energy efficient wakeup schedule of event affected nodes to shorten the idle listening, to avoid the control packet overhead and to cut down the energy wastage. Segment the data into smaller packets to reduce the cost of retransmission. After receiving the message the routing algorithm will identify the next node based on the sleep schedule and residual energy to transmit the message and proposed MAC contends to access the medium. Simulation results shows that, our combined routing and energy efficient MAC protocol for event-driven wireless sensor network concedes higher efficiency and reduce the latency than existing approaches.
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Papers by Hemappa Basappa