Abstract: With the fast readying of latest wireless devices , the last decade has witnessed a growing demand for spectrum. However, the exploit spectrum assignment policy becomes a bottleneck for additional economical spectrum utilization, below that an excellent portion of the authorised spectrum is severely under-utilized. The inefficient usage of the restricted spectrum resources urges the spectrum restrictive bodies to review their policy and begin to hunt for innovative communication technology which will exploit the wireless spectrum in an exceedingly additional intelligent and versatile approach. The construct of psychological feature radio is planned to handle the difficulty of spectrum potency associated has been receiving an increasing attention in recent years, since it equips wireless users the aptitude to optimally adapt their operational parameters per the interactions with the encircling radio atmosphere.