Downscaled LDPC Codes for Indonesia Digital Video Broadcasting Terrestrial 2nd Generation (DVB-T2)

摘要

This paper evaluates the performances of Low Density Parity Check (LDPC) codes standardized for the Digital Video Broadcasting Terrestrial 2nd Generation (DVB-T2) for further practical development and applications in Indonesia. We consider a multi carrier transmission scheme under Bandung channel model derived from Indonesia natural environments. To reduce the computational complexity of encoder and decoder, we use a downscaling technique for LDPC codes of DVB-T2 with a block length of 16200 bits to 270 bits. We perform a computer-based simulation to demonstrate the effectiveness of the downscaled LDPC codes. The simulation results show acceptable Bit Error Rate (BER) performances of downscaled LDPC codes DVB-T2 under Bandung channel model suitable for application in device consuming low power.