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Software defined hybrid MMSE/QRD-M turbo receiver for LTE advanced uplink on a cell processor

 
: Ibing, A.; Kuhling, D.; Wieruch, D.; Boche, H.

:

IEEE Communications Society:
IEEE International Conference on Communications, ICC 2009. Proceedings : June 14-18, 2009, Dresden, Germany
Piscataway, NJ: IEEE, 2009
ISBN: 978-1-4244-3435-0
ISBN: 1-4244-3435-1
ISBN: 978-1-4244-3434-3
pp.516-520 (Vol.1)
International Conference on Communications (ICC) <2009, Dresden>
English
Conference Paper
Fraunhofer HHI ()
decoding; error statistic; frequency division multiple access; least-mean-squares method; mimo communication; modulation coding; multiuser detection; ofdm modulation; radio receiver; software radio; tree searching; turbo code

Abstract
LTE advanced standardization discusses OFDMA uplink transmission, which allows for different receiver algorithms than the DFT-spread OFDMA uplink in LTE. We present a hybrid MMSE/QRD-M turbo receiver concept for 4×4 MIMO-OFDMA uplink in LTE Advanced, running the complete baseband and decoding functionality on a Cell BE processor. Multi-user MIMO with different modulation levels on the same resources is supported. Complexity and performance of the receiver are evaluated using implementation benchmarks of the signal processing components and simulated bit error rates. The benchmarks show that advanced receiver algorithms can be put into practice on software defined radio architectures.

: http://publica.fraunhofer.de/documents/N-109203.html