Functionality analysis of centralized CR network with integrated femtocell under the presence of PU

摘要

Channel sharing is anticipated to permit several cognitive radio (CR) nodes together use the unutilized spectrum resource for opportunistic transmission. Here, the channel sharing done by taking into account the transmission range as a three layers assumption. In this paper, a channel sharing scheme is exhibited that accommodates spectrum multifariousness for femtocell integrated centralized CR networks, for the time being the individual users are liable to be mobile. Individual node is uniquely allocated a channel while assuming its channel occupancy time for stationary case which signifies longest interval, the position of the node and the fairness factor in terms of channel access opportunity. Individual of channel sharing metrics contributes to a higher optimization difficulties and the ultimate aim is to maximize the whole utility of the networks. Numerical outcomes from simulation let out significant improvement in average effective capacity by decreasing spectrum handoffs. Finally, the effectiveness of the scheme is verified by extensive matlab simulation.