Modelling Interference Temperature Constraints for Spectrum Access in Cognitive Radio Networks

— With the advent of cognitive radio technology, new paradigms for spectrum access can achieve near-optimal spectrum utilisation by letting each user sense and utilise available spectrum opportunistically while regulating the interference it imposes on other users through interference constraints. However, the simplest and most common forms of such constraints are binary and transmitter-centric, which are often inef cient since they only consider pair-wise sets of transmitters. Hence, we propose a non-binary receiver-centric constraint model for spectrum access in cognitive radio networks. Such a model is in line with the recently proposed interference temperature metric that constraints whole subsets of transmitters, thereby permitting interfering signals to be introduced and enabling additional communication, leading to improved spectrum utilisation. These constraints are easy to generate and check, and are currently being used to devise a co-operative negotiated etiquette for cogni...

• Type: Conference
• Year: 2007
• Where: ICC
• Authors: Joe Bater, Hwee Pink Tan, Kenneth N. Brown, Linda Doyle
• Keywords: Cognitive Radios, Communications, ICC 2007, Spectrum, Spectrum Utilisation