• Nisha Sharma
• Kanika Sharma

With the evolution in the technology of the sink from static sink to mobile sink has improved the network durability and efficiency to a large extent. Various routing methods has been evolved to increase the lifetime of network ,energy efficiency, stability period and to decrease the waiting time depending on the requirement. Clustering technique has contributed a lot in improving the network parameters. From predetermined path to optimized path to be followed by sink has brought tremendous advancement in all the features of the wsn network whereas it has also made the network complicated to handle and costly. Mobile sink speed, routing strategy, trajectory design, sojourn time and position has to be taken care of in designing the network with mobile sink. It has also been concluded that with low duty cycle static sink is efficient while mobile sink is much efficient with high duty cycle.

Wireless sensor networks, Sink Mobility, Multi hop routing, Routing techniques

"Study of Routing Schemes and its Contribution in Evolution of Sink", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.457-462, June 2019, Available :http://www.jetir.org/papers/JETIR1906S06.pdf

"Study of Routing Schemes and its Contribution in Evolution of Sink", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp457-462, June 2019, Available at : http://www.jetir.org/papers/JETIR1906S06.pdf