• Dr. B. Indira Reddy
• T.Sri Nandini

Wireless Sensor Network security challenges and defences techniques are presented for protection of authenticity integrity, confidentiality and availability of transmission against malicious wireless attacks. Wide range of Wireless attacks and security threats at different layers. Due to the sensitive nature of the data gathered by many wireless sensor network (WSNs)it is becoming more difficult to protect the data. This paper analyzes security requirements in wireless sensor network and it facing more attacks and threats, we also discuss the open challenges in the Software Defined Network.

Wireless Sensor Network, SDN, Security challenges, Attacks, Security issues.

"SECURITY AND CHALLENGES FOR WIRELESS SENSOR NETWORK", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.11-15, May 2019, Available :http://www.jetir.org/papers/JETIRDA06003.pdf

"SECURITY AND CHALLENGES FOR WIRELESS SENSOR NETWORK", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp11-15, May 2019, Available at : http://www.jetir.org/papers/JETIRDA06003.pdf