Performance Analysis of Pulse Shaping Filters with Novel Rate Adaptive Irregular LDPC Codes

In a communication system, pulse shaping filters are used to create a band limited channel and to reduce the Inter Symbol Interference (ISI). Low Density Parity Check Codes (LDPC) code is the improved error correction code used in 5G technology to reduce BER to a great extent. This paper focuses on combining the effect of different pulse shaping filters with the novel rate adaptive irregular LDPC codes. The novel LDPC encoding algorithm having sparse Parity Check Matrix (PCM) is used to achieve capacity nearer to Shannon's Capacity. From the simulation results it is clear that this combination reduces the BER further. It is observed that this idea of combining pulse shaping filters and LDPC can be applied to high data rate communication like 5G in the view of reducing Bit Error Rate (BER).