Low-complexity detection of golden codes in LDPC-coded OFDM systems

Recent and next-generation wireless broadcasting standards, such as DVB-T2 or DVB-NGH, are considering distributed multi-antenna transmission in order to increase bandwidth efficiency and signal quality. Full-rate full-diversity (FRFD) space-time codes (STC), such as the Golden code, have been reported to be excellent candidates, being their main drawback their detection complexity, which is enhanced when soft output is required when combined with a bitinterleaved coded modulation (BICM) scheme based on low-density parity check (LDPC) codes. We present a novel low-complexity soft detection algorithm for the reception of Golden codes in LDPCbased orthogonal frequency-division multiplexing (OFDM) systems. Complexity and simulation-based performance results are provided which show that the proposed detector performs close to the optimal detector in a variety of DVB-T2 broadcasting scenarios.

• Type: Journal
• Year: 2011
• Where: ICASSP
• Authors: Iker Sobron, Maitane Barrenechea, Pello Ochandiano, Lorena Martinez, Mikel Mendicute, Jon Altuna
• Keywords: Bitinterleaved Coded Modulation, Golden Codes, ICASSP 2011, Low-density Parity Check, Signal Processing