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

Author

Sobrón, Iker ; Barrenechea, Maitane ; Ochandiano, Pello ; Martínez, Lorena ; Mendicute, Mikel ; Altuna, Jon

Author_Institution

Dept. of Electron. & Comput. Sci., Univ. of Mondragon, Mondragon, Spain

fYear

2011

fDate

22-27 May 2011

Firstpage

3160

Lastpage

3163

Abstract

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 bit interleaved 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 LDPC based 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.

Keywords

OFDM modulation; antenna arrays; communication complexity; digital video broadcasting; diversity reception; interleaved codes; next generation networks; parity check codes; space-time codes; BICM scheme; DVB-T2 broadcasting; FRFD space-time codes; LDPC-coded OFDM system; bandwidth efficiency; bit-interleaved coded modulation; detection complexity; distributed multiantenna transmission; full-rate full-diversity STC; low-complexity golden code detection; low-complexity soft detection algorithm; low-density parity check codes; next generation wireless broadcasting standards; orthogonal frequency division multiplexing system; signal quality; Complexity theory; Decoding; Detectors; Digital video broadcasting; MIMO; Measurement; Parity check codes; Golden codes; Low-density parity check (LDPC) codes; MAP detection; MIMO systems; Space-Frequency Block Coding (SFBC);

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing (ICASSP), 2011 IEEE International Conference on

Conference_Location

Prague

ISSN

1520-6149

Print_ISBN

978-1-4577-0538-0

Electronic_ISBN

1520-6149

Type

conf

DOI

10.1109/ICASSP.2011.5946692

Filename

5946692