Our work deviates from the current research in that most existing papers usually assume the mechanism in which primary users lease their spectrum to secondary users for a fraction of time and in exchange, they get cooperative transmissions or other benefits.
In the joint leasing and sensing-based CRN, the primary system leases its spectrum usage rights of shared channels to secondary system, and gets payoff from the secondary system as SUs opportunistically access the shared channels by sensing.
In this paper, cooperative resource allocation strategies are characterized for a spectrum-leasing based cognitive radio network (CRN), where the primary system leases the licensed band to the secondary system for a fraction of time in exchange for the secondary user (SU) acting as relay.
Comdisco, whose primary focus is leasing computer equipment, said that 50 of its United States subsidiaries have filed voluntary petitions for relief under Chapter 11, adding that it hopes to emerge from bankruptcy early next year.
Under the terms of its lease, Judith Kerr primary school cannot oppose the application itself, leaving it as a matter for the community with Southwark council the adjudicator, says Councillor Mark Williams, cabinet member for planning.
The primary system can temporarily lease its spectrum usage rights of the shared channels to secondary system through the spectrum broker, and get payoff from secondary system as SUs opportunistically utilize the shared channels.
In leasing-based CRNs [6], the secondary system dynamically leases spectrum from primary system and owns exclusive right to access the leased spectrum.
SUs pay the primary system the channel leasing fees only for opportunistic access.
In this paper, the artifice of the primary user in the spectrum lease is investigated.
Car sharing's success has proved to be a small antidote for traditional rental car companies that have been hurt by slumping rentals and a decline in the number of formerly leased cars, the primary source of vehicles in their fleets.
