• Dinesh Singh

In a wireless sensor network, localization is a critical approach. The techniques for estimating the position of a node may be classed as target/source localization or self-localization. We present the energy-based technique for target localisation first. Then, we look at approaches for node self-localization. Due to the extensive deployment of wireless sensor networks, the technologies used for localization vary according to application. Additionally, some unique conditions provide a number of difficulties. We present a comprehensive overview of these challenges in this paper, including non-line-of-sight localization, node selection criteria for localization in energy-constrained networks, sensor node scheduling to optimise the trade-off between localization performance and energy consumption, cooperative node localization, and a localization algorithm for heterogeneous networks. Finally, we discuss assessment criteria for wireless sensor network localisation.

Localization, WSN, Challenges

"A SYSTAMATIC REVIEW ON WIRELESS SENSOR NETWORK", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 8, page no.912-915, August-2018, Available :http://www.jetir.org/papers/JETIR1809A41.pdf

"A SYSTAMATIC REVIEW ON WIRELESS SENSOR NETWORK", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 8, page no. pp912-915, August-2018, Available at : http://www.jetir.org/papers/JETIR1809A41.pdf