• Mohd Asifuddola
• Liyaqat Nazir

The traditional static spectrum allocation policy will no longer cater the spectrum requirement of increasing demand of spectrum by new wireless devices. In static allocation policy, whenever licensed owners of the spectrum are silent or when they are not active that portion of the spectrum remains vacant which results in inefficient use of the spectrum. Cognitive Radio (CR) Technology has been recognized as a promising solution to support ever increasing wireless devices spectrum needs. The unlicensed users use the spectrum assigned to licensed users whenever they are not active or when they are not using it. In a CR environment, licensed users of the spectrum are Primary users (PUs) and unlicensed users of the spectrum are Secondary users (SUs). In a CR environment, SUs need to coordinate with each other for communication establishment. For this purpose, a dedicated common control channel (CCC) is a basic requirement but an always available CCC in a dynamic environment is difficult to maintain because of PUs random activity. To solve this issue, blind rendezvous is a technique for SUs to find each other without the need of a dedicated CCC. In this paper, a comparative study of various CCC establishment techniques and blind rendezvous has been done. It has been found that blind rendezvous is a promising solution for SUs for their communication needs in CR environment.

Cognitive Radio, common control channel, rendezvous

"Comparative Study between Control Channel Establishment and Blind Rendezvous in Cognitive Radio Networks ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.566-569, May-2019, Available :http://www.jetir.org/papers/JETIR1905Q79.pdf

"Comparative Study between Control Channel Establishment and Blind Rendezvous in Cognitive Radio Networks ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp566-569, May-2019, Available at : http://www.jetir.org/papers/JETIR1905Q79.pdf