Abstract:
The ability to dynamically discover portions of unused radio spectrum is a central ability of cognitive radios as it allows for dynamic access and sharing of the spectrum...Show MoreMetadata
Abstract:
The ability to dynamically discover portions of unused radio spectrum is a central ability of cognitive radios as it allows for dynamic access and sharing of the spectrum. Focusing on implementation lessons, this work steps through the design, implementation, and analysis of a wideband spectrum holes detector. Energy detection and cyclostationary detection algorithms for detecting spectrum holes are compared and the former is seen to perform better in applications with a constrained sensing time. A multiband energy detection algorithm able to scan a gigahertz-order range of frequencies and discover spectrum holes in real time is implemented on a software-defined radio. Resource utilization and requirements of the implementation are analyzed. Experiments are performed on the implementation to measure performance, study practical issues, and demonstrate its detection ability over a wide bandwidth with reasonable latency.
Date of Conference: 14-16 November 2017
Date Added to IEEE Xplore: 08 March 2018
ISBN Information: