Apparatus and method for improved modulation and coding schemes for broadband satellite communications systems

摘要

Modulation and coding schemes are provided for improved performance of wireless communications systems to support services and applications for terminals with operational requirements at relatively low E s / N 0 ratios. The new modulation and coding schemes provide new BCH codes, low density parity check (LDPC) codes for code rates 11/45, 14/45, 26/45, 32/45, 3/5 or 2/3 with code length 16200 and interleaving methods.