• A JEMILA RANI

A possible method for sustaining the operation of wireless networks is radio frequency (RF) energy harvesting. A secondary user in a cognitive radio network may be capable of harvesting RF energy. In this research, we take into account a network with channel access, where the secondary user can send a packet or harvest RF energy depending on whether the primary user is using the channel or not. For RF energy harvesting cognitive radio networks, a multichannel selection technique is suggested. In this case, there are several channels available, and each secondary user (SU) harvests RF energy from the channel that is currently being used by active primary users while transmitting data using other accessible but unoccupied channels. This nonconvex problem is first converted into a convex optimisation problem using an analogous transformation, and then it is resolved using the joint optimal time and power allocation (JOTPA) technique, which successively resolves a series of feasibility issues until convergence. According to comparison data, the buffer can greatly lower the likelihood of SU blockage and non-completion while just slightly increasing the likelihood of forced termination. Extensive simulation has been used to validate the analytical model.

Radio frequency (RF), secondary user (SU), the joint optimal time and power allocation (JOTPA) algorithm, wireless networks

"RADIO FREQUENCY (RF) ENERGY HARVESTING IN COGNITIVE RADIO NETWORKS USING A JOINED OPTIMAL TIME AND POWER ALLOCATION ALGORITHM", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.1, Issue 7, page no.129-134, December-2014, Available :http://www.jetir.org/papers/JETIR1701B22.pdf

"RADIO FREQUENCY (RF) ENERGY HARVESTING IN COGNITIVE RADIO NETWORKS USING A JOINED OPTIMAL TIME AND POWER ALLOCATION ALGORITHM", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.1, Issue 7, page no. pp129-134, December-2014, Available at : http://www.jetir.org/papers/JETIR1701B22.pdf