Sciweavers

Share
ICC
2008
IEEE

A Two-Stage Sensing Technique for Dynamic Spectrum Access

9 years 4 months ago
A Two-Stage Sensing Technique for Dynamic Spectrum Access
—Dynamic spectrum access (DSA) is a promising approach for mitigating spectrum scarcity. Underlying DSA is the need for fast and reliable spectrum sensing over a potentially large band. In [4], the concept of two-stage sensing scheme was introduced. In this work, we develop models for performance analysis based on mean time to detect an idle channel. Simulation results show that two-stage sensing leads to faster detection than conventional single-stage random search. System-level issues such as the impact of bandwidth of coarse sensing block and sensing duration of energy detector on mean detection time are also explored.
Ling Luo, Sumit Roy
Added 30 May 2010
Updated 30 May 2010
Type Conference
Year 2008
Where ICC
Authors Ling Luo, Sumit Roy
Comments (0)
books