Title :
Adaptation Combined Spatial Multiplexing and Diversity Techniques for Adaptive MIMO-OFDM System
Author :
Zhang Yu ; Zhang Naitong
Author_Institution :
Sch. of Electron. & Inf. Technolog, Harbin Inst. of Technol., Harbin
Abstract :
An adaptive modulation and coding (AMC) and adaptive antenna grouping (AAG) architecture for multi-input multi-output orthogonal frequency-division multiplexed (MIMO- OFDM) system was proposed to effectively eliminate or resist various fading in wireless channels and to offer best tradeoff between transmission reliability and capacity. This combining scheme is not only adaptively to modulate to transmit more information over subcarriers but also adaptively to find the optimal STC/SM grouping scheme according to the estimated SNR. The simulation shows that the BER and throughput performance of the AMC and AAG MIMO-OFDM system outperform the conventional MIMO-OFDM and the AMC MIMO-OFDM system.
Keywords :
MIMO communication; OFDM modulation; adaptive antenna arrays; adaptive modulation; diversity reception; fading channels; modulation coding; multiplexing; telecommunication network reliability; BER; adaptation combined spatial multiplexing; adaptive MIMO-OFDM system; adaptive antenna grouping architecture; adaptive modulation and coding; diversity techniques; multiinput multioutput orthogonal frequency-division multiplexing; transmission reliability; wireless channels; Adaptive arrays; Adaptive systems; Diversity reception; Fading; Frequency division multiplexing; Modulation coding; OFDM modulation; Resists; Samarium; Transmitting antennas;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-2107-7
Electronic_ISBN :
978-1-4244-2108-4
DOI :
10.1109/WiCom.2008.142
