Routing Solutions in Cognitive Radio Network Using Local Network State Information
Kanchan Hadawale, Sunita Barve · 2013
Abstract: Cognitive Radio (CR) technology is introduced to solve the problem of spectrum usage inefficiency of wireless networks. CR technology allows sharing of licensed spectrum band in opportunistic and non interfering manner. However it should be aware of spectrum availability and Primary User (PU) activities. Routing and spectrum management are the main challenges in Cognitive Radio Network. Here routing challenges and solutions are explained in detail. Spectrum occupancy information maintained at each cognitive user is used for routing decision. With this local information methodologies are explained for different routing metrics. Finally open research issues of routing in CRN are outlined.