Spectrum Leasing to Cooperating Secondary Ad Hoc Networks

Abstract--The concept of cognitive radio (or secondary spectrum access) is currently under investigation as a promising paradigm to achieve efficient use of the frequency resource by allowing the coexistence of licensed (primary) and unlicensed (secondary) users in the same bandwidth. According to the property-rights model of cognitive radio, the primary terminals own a given bandwidth and may decide to lease it for a fraction of time to secondary nodes in exchange for appropriate remuneration. In this paper, we propose and analyze an implementation of this framework, whereby a primary link has the possibility to lease the owned spectrum to an ad hoc network of secondary nodes in exchange for cooperation in the form of distributed space-time coding. On one hand, the primary link attempts to maximize its quality of service in terms of either rate or probability of outage, accounting for the possible contribution from cooperation. On the other hand, nodes in the secondary ad hoc network ...

• Type: Journal
• Year: 2008
• Where: JSAC
• Authors: Osvaldo Simeone, Igor Stanojev, Stefano Savazzi, Yeheskel Bar-Ness, Umberto Spagnolini, Raymond L. Pickholtz
• Keywords: Ad Hoc Network, Cognitive Radio, JSAC 2008, Secondary Spectrum Access