Title :
Multiple-QR-Decomposition Assisted Group Detection for Reduced-Complexity-and-Latency MIMO-OFDM Receivers
Author :
Kimura, Ryota ; Funada, Ryuhei ; Harada, Hiroshi ; Shimamoto, Shigeru
Author_Institution :
Nat. Inst. of Inf. & Commun. Technol., Kanagawa
Abstract :
We propose a new multiple-QR-decomposition assisted group detection (multi-QRD-GD) algorithm for the development of reduced-complexity-and-latency multi-input multi-output (MIMO) orthogonal frequency division multiplexing (OFDM) receivers. In addition, we investigate an effect of adaptive grouping (AG) based on received signal-to-noise power ratio for multi-QRD-GD. In this paper, we describe the functions of the multi-QRD-GD algorithm and AG scheme. Then, we compare bit error rate (BER) performances of the proposed multi-QRD-GD and conventional detection algorithms by computer simulations. In addition, we compare the computational complexities of the algorithms
Keywords :
MIMO communication; OFDM modulation; computational complexity; error statistics; matrix algebra; radio receivers; signal detection; BER; adaptive grouping; bit error rate; computational complexities; multi-input multi-output orthogonal frequency division multiplexing receivers; multiple-QR-decomposition assisted group detection; reduced-complexity-and-latency MIMO-OFDM receivers; signal-to-noise power ratio; Bit error rate; Delay; Detectors; Forward error correction; MIMO; Mobile communication; OFDM; Signal processing algorithms; Transmitters; Transmitting antennas;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2006 IEEE 17th International Symposium on
Conference_Location :
Helsinki
Print_ISBN :
1-4244-0329-4
Electronic_ISBN :
1-4244-0330-8
DOI :
10.1109/PIMRC.2006.254346
