Recently the problem of modulation classification has received much attention in military and commercial applications. Various approaches introduced to solve this problem. Most of these approaches has been based on some special characteristics of received signal which are resolvable for various types of modulations. In this paper modulated signal symbols constellation utilizing TTSAS clustering algorithm and matching […]
Cognitive radio is a revolutionary technology that made significant progress in the effective use of the frequency spectrum. The technology itself can be dynamically adjusted so that the proper utilization of the available radio spectrum can be made. According to various studies conducted, it is observed that the bulk of each frequency band allocated to […]
