An optimal transmitted power reduction based rate improvement technique in cognitive radio networks

Abstract

This research analyzes an instantaneous transmission rate strategies for secondary users in cognitive radio networks by analyzing their effective capacity performance with HOERA and transmission block sizes. Describing a network model with secondary transmitter and secondary receiver with the potential presence of primary users, we present an interference power constraint that limits the transmission power of secondary users not only when a channel is sensed as busy but also when a channel is sensed as idle. The proposal model provides the tradeoff between reduced power with improved rate constraints. Further the proposed optimization scheme also reduces the complexity of the secondary networks.