Title :
Turbo-Coded MIMO Iterative Receiver with Bit Per Bit Interference Cancellation for M-QAM Gray Mapping Modulation
Author :
Boher, Laurent ; Hélard, Maryline ; Rabineau, Rodrigue
Author_Institution :
France Telecom R&D Div., Cesson Sevigne
Abstract :
In this paper an iterative receiver including a duo-binary turbo code is proposed for multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) systems. A double iterative loop allows to obtain good performance by efficiently cancelling co-antenna interference and profiting from the gain of duo-binary turbo decoding. Nevertheless, in order to limit complexity of the receiver, a MMSE interference canceller is considered and a new sequencing is proposed to compute in parallel turbo decoding and MIMO detection. By this way, calculation power is evenly distributed and processing time is reduced. The performance of this MIMO-OFDM system is validated by simulations for a 4times4 spatial multiplexed case under BRAN E channel.
Keywords :
MIMO communication; binary codes; decoding; interference suppression; quadrature amplitude modulation; radio receivers; radiofrequency interference; turbo codes; M-QAM gray mapping modulation; MIMO detection; bit per bit interference cancellation; co-antenna interference cancelling; duo-binary turbo code; duo-binary turbo decoding; multiple-input multiple-output orthogonal frequency division multiplexing; turbo-coded MIMO iterative receiver; Convolutional codes; Interference cancellation; Intersymbol interference; Iterative decoding; MIMO; Modulation coding; OFDM; Transmitters; Turbo codes; Wireless communication;
Conference_Titel :
Vehicular Technology Conference, 2007. VTC2007-Spring. IEEE 65th
Conference_Location :
Dublin
Print_ISBN :
1-4244-0266-2
DOI :
10.1109/VETECS.2007.494