Title: COLLABORATIVE SPECTRUM SENSING OVER FADING CHANNELS IN COGNITIVE RADIO NETWORK Authors: Tran, Viet Duc Keywords: RADIO NETWORK;MOBILE NETWORKS Issue Date: 2013 Publisher: ĐHCN Abstract: 4th generation (4G) mobile communication networks have resolved many problems of 3rd generation mobile networks. Following the boom development of communications, it has a dramatically increase in the number of user terminals that leads to foresee the limitations of 4G mobile communication standards. It is expected that beyond 4G mobile networks or 5G mobile networks will provide not only very high transmission rate but also utilize radio resource effectively under the constraints of high user density and limited radio spectrum. So we will present a vision for beyond 4G mobile networks or 5G mobile cellular networks based on the notions from expert international forums and well-known published papers. To solve communications demand of high user ...