Detecting, tracking, and exploiting spectrum opportunities in unslotted primary systems
- 1 January 2008
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- No. 21642958,p. 491-494
- https://doi.org/10.1109/rws.2008.4463536
Abstract
We consider the design of an spectrum overlay network where secondary users detect, track, and exploit spectrum opportunities in unslotted primary systems. We develop a decision-theoretic framework for the optimal joint design of the spectrum sensor and tracking and access strategies, and obtain structural solutions. Our results suggest the equivalence between the design of overlay networks in unslotted primary systems and that in slotted primary systems where channel occupancy by primary users can only change at known and fixed time instants. This equivalence points to the possibility of reducing the design of spectrum overlay in unslotted primary systems to that in slotted primary systems, a significantly simpler problem, and porting results available on the latter to the former.Keywords
This publication has 6 references indexed in Scilit:
- Joint Design and Separation Principle for Opportunistic Spectrum Access in the Presence of Sensing ErrorsIEEE Transactions on Information Theory, 2008
- Low-Complexity Approaches to Spectrum Opportunity TrackingPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2007
- A Survey of Dynamic Spectrum AccessIEEE Signal Processing Magazine, 2007
- COGNITIVE RADIOS FOR DYNAMIC SPECTRUM ACCESS - Dynamic Spectrum Access in the Time Domain: Modeling and Exploiting White SpaceIEEE Communications Magazine, 2007
- Decentralized cognitive MAC for opportunistic spectrum access in ad hoc networks: A POMDP frameworkIEEE Journal on Selected Areas in Communications, 2007
- Optimal Dynamic Spectrum Access via Periodic Channel SensingPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2007