A Test Methodology for Evaluating Cognitive Radio Systems
The cognitive radio (CR) field currently lacks a standardized end-user test methodology that is repeatable, flexible, and effective across multiple CR architectures. Furthermore, the CR field lacks a suitable device-agnostic framework that allows testing of an integrated CR system and not solely specific components. This paper presents a CR test methodology, known as the Cognitive RAdio Test Methodology (CRATM), to address these issues. CRATM proposes to use behavior-based testing in which cognition may be measured by evaluating both primary user (PU) and secondary user (SU) (i.e., the CR under test) performance. Data on behavior-based testing are collected and evaluated. An SU pair and a PU radio pair are implemented using the Wireless Open-Access Research Platform (WARP) and the WARPLab software running in MATLAB. The PU is used to create five distinct radio-frequency environments utilizing narrow-band, wideband, and noncontiguous waveforms. The SU response to the PU created environments is measured. The SU implements a simple cognitive engine (CE) that incorporates energy-detection spectrum sensing. The effect of the CE on both SU and PU performance is measured and evaluated. Abstract © IEEE.
IEEE Transactions on Wireless Communications
J. J. Thompson, K. M. Hopkinson and M. D. Silvius, "A Test Methodology for Evaluating Cognitive Radio Systems," in IEEE Transactions on Wireless Communications, vol. 14, no. 11, pp. 6311-6324, Nov. 2015.