A Unified Approach of Augmenting the Lifetime of Cooperative Wireless Sensor Networks

Authors

  • B. Somasekhar, G. Rohitha, A. Tarun Kumar, B. Bhaskar, B. Prudhvi

Abstract

This paper aims to optimize the service life of the network in wireless sensor networks. In this work, the emphasis is focused on energy harvesting and energy reduction methods for the enhancement of network life in wireless sensor networks. In the wireless sensor network, using the energy harvesting nodes as the cooperative relays for scavenging energy from ambient sources can lead us to better solution. The measurements of network efficiency such as probability of successful information exchange and network lifetime gain were obtained and simulated using the MATLAB program. To have an efficient communication between two corners and to minimize the energy consumption in WSN, fading must to be reduced for which spatial diversity is the solution. In this paper, VMIMO technique is used to achieve spatial diversity in wireless sensor networks that requires the use of single omnidirectional antenna at each sensor node and decreases the power consumption by considering multiple node cooperation. In addition to energy harvesting, this paper also studies about joint virtual MIMO and energy-efficient data gathering in wireless sensor networks. D-vMDG algorithm is studied which is used for an efficient data gathering  inVMIMO based communication scheme. This algorithm involves constructingtree like topology by taking specific features of VMIMO into account. D-vMDG reduces energy consumption by 81% and 31% compared to MDT and the MIMO-LEACH algorithms according to simulation study.

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Published

2020-05-18

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Section

Articles