• Shivani Massey

Cognitive radio networks are becoming increasingly popular these days because of their propensity to tackle spectrum shortage problem so efficiently through dynamic spectrum access. The cognitive radios are battery operated devices and require continuous spectrum monitoring for the opportunistic use of the spectrum. Thus, the performance of such radios is limited by the battery life. To overcome this bottleneck, a hybrid energy harvesting scheme is proposed in this paper. The proposed scheme harvest energy from RF energy from PU as well as SU on detecting their presence and absence from the channel. The proposed algorithm compares the harvested energy with desired transmission power. If the harvested energy is less than desired transmission power, external energy source is used to meet the deficit. The numerical simulated results are presented and compared with the conventional scheme to validate the proposed scheme.

Cognitive radio network, Energy harvesting.

"HYBRID ENERGY HARVESTING SCHEME FOR COGNITIVE RADIO NETWORK", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 5, page no. b906-b910, May-2021, Available :http://www.jetir.org/papers/JETIR2105241.pdf

"HYBRID ENERGY HARVESTING SCHEME FOR COGNITIVE RADIO NETWORK", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 5, page no. pp b906-b910, May-2021, Available at : http://www.jetir.org/papers/JETIR2105241.pdf