Routing Metric for Cognitive Radio Networks

Abstract

Wireless technology is spreading fast. While devices such as cell phones, laptops etc. receive a lot of attention, wireless technology impact has become broader such as through sensor networks, smart grid, embedded wireless devices etc. So many wireless applications create more demand for radio spectrums. Easily avail- able spectrum bands are assigned and legalized to a few known to us as Primary users. Studies have shown that these bands are not fully utilized. Thus, we need some new technologies to use these resources to their full potential. Cognitive radios maximize the use of such bands. For this technology to work better, we need efficient routing metrics for the best route selection. In paper aims at proposing a new routing metric for Cognitive Radio Networks which would consider some important factors affecting the route selection and compare it with other existing routing metric.