SAT02-3: Performance Analysis of LDPC-Coded PSK Signal Transmission over Non-Linear Satellite Channel in the Presence of Multiple Interferences

Several classes of low-density parity-check (LDPC) codes are proposed as an error control coding (ECC) scheme for a non-linear satellite system with the phase-shift keying (PSK) signaling. The bit-error rate (BER) performance of LDPC codes is determined by means of an advanced simulator that takes into account all major impairments in the transmission link between fixed ground stations over a non-regenerative geostationary (GEO) satellite. Our analysis includes the following impairments: the degradations caused by simultaneous influences of cross- polarization effects, undesired signals from neighboring satellite systems or terrestrial radio-relay links and phase noise produced by local oscillator at the satellite station and reference signal extractor at the receiving ground station. The proposed LDPC codes are compared against standard ECC schemes employed in modern satellite communication systems.