Conference Papers
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Item Energy efficient and reliable network design to improve lifetime of low power IoT networks(Institute of Electrical and Electronics Engineers Inc., 2017) Sarwesh, P.; Shekar, N.; Shet, V.; Chandrasekaran, K.Internet of Things is smart technology that is used in wide range of applications, IoT converges physical devices with cyber systems to facilitate global information sharing. In IoT network, devices are constrained by energy (limited by battery power). Thus, efficient energy utilization is the major challenge in low power IoT networks. In this paper, energy efficient and reliable network architecture is proposed to improve the lifetime of IoT networks. In proposed network architecture, routing technique and node placement technique are effectively integrated to address energy and reliability related issues. In node placement technique, density of sensor nodes are hierarchically varied to balance the energy consumption and reliability related parameters are included in routing mechanism. Hence, effective combination of these two techniques in single network architecture prolongs the lifetime of the network. In proposed work, sensor nodes and relay nodes, sensors do sensing and relay nodes handles path computation and data transmission. We included IEEE 802.15.4 PHY/MAC radio and IPv6 module in proposed work to adopt IoT Scenario. From our results, it is observed that proposed architecture prolongs the lifetime of low power IoT network. © 2017 IEEE.Item Novel schemes for energy-efficient IoT(Springer Verlag service@springer.de, 2019) Venkateshwarlu, K.; Shetty D, D.Internet of things (IoT) is a global infrastructure for the information society which enables advanced services by interconnecting physical and virtual things based on existing and evolving inter-operable information and communication technologies. Developing green IoT is a difficult task because IoT has more devices and has complex structure, so most of the current schemes for deploying nodes in wireless sensor networks (WSNs) cannot be applied directly in IoT. In this paper, we propose a scheme which gives an energy-efficient IoT. Here, we propose two schemes for framework structure of a network, and then we propose clustering algorithms and routing algorithms for network formation which is based on minimum spanning tree. After numerous simulations, we show that these schemes result in minimal energy consumption and enhance the network lifetime. Thus, the proposed schemes are more energy-efficient compared to a typical WSN deployment scheme; hence, these schemes are applicable to the green IoT deployment. We show that in the proposed schemes, the nodes are alive for more number of rounds as compared to the existing algorithms. © 2019, Springer Nature Singapore Pte Ltd.Item Analysis of the Standard Objective Functions of RPL(Springer Science and Business Media Deutschland GmbH, 2022) Kamble, S.; Chandavarkar, B.R.Low power and Lossy Network (LLN) is a network widely used to connect objects nowadays, and routing in such type of network is a new research area to work. ROLL-WG developed a routing protocol for LLN called Routing Protocol for low power and lossy network (RPL). Here, the Objective Function (OF) defines the way the node should select the parent node. The two standard OFs are OF-0, and MRHOF developed in 2010 and 2012. The paper explains these OFs and presents the experimental results of the two OFs in Contiki-3.0. The experiments were carried out by varying the number of nodes and varying data rates. The experimental results show that due to low hop count and fewer nodes getting involved in OF-0, it performs better than MRHOF, as MRHOF requires more stable links to transmit the data. Thus, OF-0 is useful in the scenarios where there are fewer nodes, and the destination is closer. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.