Data Transfer Through Ofdm Transceiver With The Aid Of Gnu Radio

Communication plays a major role in everyone's life. Wireless communication technology is applied in many applications and protocols. Multiple access can be provided to make the communication more flexible. As the number of users increases, the technology should allocate more bandwidth. In wireless communication, proper data transmission between two end users without noise is somewhat difficult to achieve. The main aim of the project is to build a communication system which is used for data transmission without any noise. Orthogonal frequency division multiplexing (OFDM) is a multi-carrier modulation scheme whose signal's sidebands spread out on either side. It forms many non-selective frequency channels which are parallel, thus reducing the Inter Symbol Interference (ISI) and overcrowding. High stability, high accuracy and proper data flow can be attained and thus, the flawless communication is established. Hence OFDM scheme is chosen for data transmission and the transceiver is designed using a software called GNU radio companion (GRC). The transmitted data is analysed using constellation plot, FFT plot and scope plot by various modulation schemes.