Title :
Adaptive MIMO Transmission Scheme for Spatially Correlated Broadband BICM-OFDM Systems
Author :
Yao, Dachuan ; Camargo, Alfonso ; Czylwik, Andreas
Author_Institution :
Dept. of Commun. Syst., Univ. of Duisburg-Essen, Duisburg
Abstract :
This contribution presents an adaptive MIMO transmission scheme for packet-switched broadband OFDM wireless communications with bit-interleaved coded modulation (BICM). Combining EESM-based link adaptation and per antenna rate control (PARC), the proposed scheme adapts the MIMO transmission method between beamforming and spatial multiplexing to the spatial correlation of the encountered wireless channel. This scheme aims to maximize the average bandwidth efficiency for a predefined target packet error ratio (PER) and transmit energy. Moreover, additional performance gains are demonstrated when adaptive bit-loading algorithm is implemented.
Keywords :
MIMO communication; OFDM modulation; antenna arrays; error statistics; interleaved codes; EESM-based link adaptation; adaptive MIMO transmission scheme; beamforming multiplexing; bit-interleaved coded modulation; packet error ratio; packet-switched broadband OFDM wireless communications; per antenna rate control; spatial multiplexing; transmit energy; Adaptive arrays; Array signal processing; Broadband communication; Communication system control; Interleaved codes; MIMO; Modulation coding; OFDM modulation; Transmitting antennas; Wireless communication;
Conference_Titel :
Vehicular Technology Conference, 2008. VTC 2008-Fall. IEEE 68th
Conference_Location :
Calgary, BC
Print_ISBN :
978-1-4244-1721-6
Electronic_ISBN :
1090-3038
DOI :
10.1109/VETECF.2008.202
