Title :
12x12 MIMO-OFDM realtime implementation for 3GPP LTE+ on a Cell Processor
Author :
Kühling, David ; Ibing, Andreas ; Jungnickel, Volker
Author_Institution :
Fraunhofer Inst. for Telecommun., Heinrich-Hertz-Inst., Berlin
Abstract :
We present a realtime implementation of the time-critical core functions for 12 times 12 MIMO-OFDM (12 data streams) with LTE parameters on a cell broadband engine processor. An MMSE equalizer matrix update interval of 1 ms (high mobility) is achieved with less than 50% CPU utilization. Concurrent bidirectional processing (precoding and postprocessing) is shown to be feasible with this update rate.
Keywords :
3G mobile communication; MIMO communication; OFDM modulation; equalisers; least mean squares methods; matrix algebra; microprocessor chips; 3GPP LTE; CPU utilization; MIMO-OFDM realtime implementation; MMSE equalizer matrix; cell broadband engine processor; concurrent bidirectional processing; Base stations; Equalizers; Interference; MIMO; Multiaccess communication; Radio frequency; Signal processing algorithms; Signal to noise ratio; Target tracking; Transmitting antennas;
Conference_Titel :
Wireless Conference, 2008. EW 2008. 14th European
Conference_Location :
Prague
Print_ISBN :
978-3-8007-3102-2
DOI :
10.1109/EW.2008.4623917
