Next generation of mobile communication systems goal is to impeccably integrate an extensive variety of communication services such as high speed data, video and multimedia traffic on top of voice signals. The purpose of this work is to assemble realistic communication systems based on Software Defined Radio kits. Two projects were implemented using the Ettus Universal Radio Peripheral (USRP); an Orthogonal Frequency Division Multiplexing (OFDM) communication system and a GSM Base Transceiver Station (BTS). The reliability and performance of the implemented OFDM system was deliberated by...