• J.B. Bhosale
• A.D. Shaligram

Wireless communication has been an emerging technology in last decade. But with all the development in this field the limitation of spectrum resources remains the main problem in this field. So, to overcome this problem of limited spectrum resources cognitive radio networks were introduced which are networks that are capable of learning through its experience and current environment and adjust itself according to the current situation. Thus the main purpose of cognitive radio networks is to make full use of available spectrum resources and apply in disaster /distress situation for emergency communication. Cognitive radio networks are capable of detecting the best available channels for their communication such that they don’t interfere with other licensed or non-licensed users.

Cognitive Radio (CR), Network Simulator NS- 2, Packet Drop,

"Performance Analysis of Cognitive Radio Networks by using Network Simulator NS-2", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.525-529, May-2019, Available :http://www.jetir.org/papers/JETIR1905R79.pdf

"Performance Analysis of Cognitive Radio Networks by using Network Simulator NS-2", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp525-529, May-2019, Available at : http://www.jetir.org/papers/JETIR1905R79.pdf