This thesis results from activities conducted within the ¿C3¿ project of the ¿CubeSat Team¿ of the Polytechnic University of Turin. Goal of work is to implement Communication Subsystem of CubeSat Control Centre, based on software defined radio paradigm. CubeSat concept was proposed to set standards to promote developing required skillsets in students and novice researchers engaged in the aerospace industry. However, CubeSat concept has quickly been adopted to fulfill the needs of various commercial and research fields as well. Involvement of Polytechnic University of Turin in the educational satellite field started in 2004, and it already launched E-ST@R-I and E-ST@R-II CubeSats to the orbit in 2012 and 2016, respectively.