DefinePK

Abstract

In this paper, we focus on efficient cellular transmission in Software Defined Radio (SDR) using Orthogonal Frequency Division Multiplexing (OFDM). SDR is an emerging technology for the radio communication system where some or all the physical layer functions are software defined. In this work, the QAM modulation is enhanced by using Linear Minimum Mean Squared Error (LMMSE) Equalizer. Subsequently, the Inter Carrier Interference (ICI) in the OFDM system leading to frequency offset is overcome by Maximum Ratio Combining (MRC) technique. Then the water filling algorithm is developed to improve the capacity of the SDR-OFDM network.