• Anjali Thakur
• Kanika Sharma

Wireless sensor networks (WSNs) are combination of sensor nodes having communication abilities. These nodes consist battery for power consumption which is limited, sensors and processors for computing abilities. The major challenge of WSN is to improve the network lifetime. As the power is limited various energy efficient protocols are designed to achieve the goal to utilize minimum energy. Hotspot Problem is one of the problems that have major impact on network lifetime. The Hotspot Problem is a situation or circumstance when the nodes near sink consumes more energy and become dead faster than those are far from sink. This creates energy imbalance in the network and sufficient energy remains unused. Various routing techniques are designed to remove or to avoid hotspot problem. This paper discusses different routing techniques that solves hotspot problem and also discusses the effect of these techniques. A survey is done on these different techniques that are used to remove Hotspot Problem.

Wireless sensor networks, Hot-Spot problem, Multi hop routing, Routing techniques

"Study of Hotspot mitigating techniques in Wireless Sensor Networks", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.249-252, June 2019, Available :http://www.jetir.org/papers/JETIR1906L38.pdf

"Study of Hotspot mitigating techniques in Wireless Sensor Networks", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp249-252, June 2019, Available at : http://www.jetir.org/papers/JETIR1906L38.pdf