The performance of adaptive modulation for cognitive radio with opportunistic access is analyzed by considering the effects of spectrum sensing, primary user (PU) traffic, and time delay for Nakagami- m fading channels. Both the adaptive continuous rate scheme and the adaptive discrete rate scheme are considered. Numerical examples are presented to quantify the effects of spectrum sensing, PU traffic, and time delay for different system parameters. © 1967-2012 IEEE.
ASJC Scopus subject areas
- Automotive Engineering
- Applied Mathematics
- Computer Networks and Communications
- Electrical and Electronic Engineering
- Aerospace Engineering