This paper studies the auction-driven dynamic spectrum access in cognitive radio networks with heterogeneous secondary users, who have different risk attitudes. First, a game theoretic framework is established for auction-driven dynamic spectrum access in cognitive radio networks. The utility functions and bidding strategies of heterogeneous secondary users are defined, and the parameterized au...

Auctions have been widely studied as an efficient approach of allocating spectrum among secondary users in recent years. On the other side, a wide range of frequency bands could be available in a spectrum auction considering the current trend of deregulating wireless resources, therefore, channels provided by the primary users may reside in widely separated frequency bands, and due to the diffe...

Magnetic radio spectrum is usually allocated by means of auctions. Mobile operators bid for spectrum licenses which are used to offer communication and data services to their customers. Such spectrum sales are among the biggest trades in terms of revenue, which makes this domain especially interesting for research in the field of market design and auctions. For many years now, the Simultaneous ...

In this paper, we address dynamic spectrum access for Primary Operators (POs) for LTEAdvanced systems. We propose a dynamic spectrum access framework that exploits the capabilities of carrier aggregation to efficiently utilize the unutilized spectrum which varies with time and space when static spectrum access policies are adopted. A spectrum owner (SO) adopts an auction scheme for accessing sp...

With the fast growing traffic of the ubiquitous mobile devices, the demands for available radio spectrum resources are increasing rapidly. Unfortunately, many new spectrum demanders cannot access the limited spectrum licensees in time while a large pool of spectrum resources are extremely underutilized. Auction has been regarded as one of the promising methods for the scarce resources allocatio...

The “shortage” of radio spectrum is usually attributed to the scarcity of spectrum, but it is due to the inefficiency of radio technologies and spectrum management. Regulatory reforms are being proposed to assign exclusive rights to spectrum, but such reforms would be harmful because the spectrum is not a property but a protocol by which information is carried. New packet radio technologies ena...