Design of Short Quasi-Cyclic LDPC Codes for Next Generation Broadcast Wireless Systems

Chinese next generation broadcast wireless (NGB-W) systems are aimed to provide high-speed, ubiquitous, and secure broadcast services and tri-play services to massive users. New terrestrial broadcast techniques are needed to support these services in NGB-W systems. In this paper, a new set of quasi-cyclic (QC) low density parity check (LDPC) codes with a moderate code length and a wide operation range are proposed for NGB-W systems. It is shown by simulations that the perfor-mance of the proposed LDPC codes is much better than that of the LDPC codes used in the second generation television broad-cast of digital video broadcasting (DVB-T2/NGH) systems.

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