Title :
Performance Gain of Space-Time-Frequency Concatenated LDPC Codes
Author :
Maré, K.P. ; Salmon, B.P. ; Maharaj, B.T.
Author_Institution :
Dept. of Electr., Electron. & Comput. Eng., Univ. of Pretoria, Pretoria, South Africa
Abstract :
This paper introduces a STFC-LDPC (space-time- frequency code low density parity check) concatenated coding scheme for high performance MIMO (multiple input, multiple output) systems. The coding design and performance evaluation are illustrated for various frequency-selective block fading conditions and compared with a STC-LDPC (space-time code LDPC) concatenated scheme over quasi-static fading conditions. The codes were analyzed and compared in space-selective conditions using various PDPs (power-delay profiles) to illustrate the performance gain of this newly proposed coding technique. The proposed STFC-LDPC showed a performance increase compared to the STC-LDPC scheme due to the inherent higher diversity of the STFC and is a suitable coding technique for high performance MIMO systems.
Keywords :
MIMO communication; concatenated codes; diversity reception; fading channels; parity check codes; space-time codes; MIMO systems; PDP; STC-LDPC concatenated scheme; STFC-LDPC; frequency-selective block fading conditions; low density parity check code; multiple input multiple output systems; performance gain; power-delay profiles; quasistatic fading conditions; space-time-frequency concatenated LDPC codes; Concatenated codes; Decoding; Diversity reception; Fading; Frequency diversity; MIMO; OFDM; Parity check codes; Performance gain; Receiving antennas;
Conference_Titel :
Communications, 2009. ICC '09. IEEE International Conference on
Conference_Location :
Dresden
Print_ISBN :
978-1-4244-3435-0
Electronic_ISBN :
1938-1883
DOI :
10.1109/ICC.2009.5199327
