Title :
Dynamic range analysis on MIMO-OFDM channels in a populated time-varying indoor environment
Author :
Gupta, Jishu Das ; Ziri-Castro, Karla ; Suzuki, Hajime
Author_Institution :
Dept. of Math. & Comput., Univ. of Southern Queensland, Toowoomba, QLD
Abstract :
We investigate the variations on channel capacity for a multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) system due to the presence of pedestrians. Capacity dynamic range is measured for 2 times 2, 3 times 3, and 4 times 4 antenna configurations in line-of-sight (LoS) and non-LoS (NLoS) environments using fixed signal-to-noise ratio (SNR) and fixed transmitted (Tx) power. It was found that the fixed SNR capacity increased while fixed Tx power capacity decreased in both environments in the presence of pedestrians. The results show larger dynamic range values for LoS over NLoS and similar dynamic range values for different antenna configurations.
Keywords :
MIMO communication; OFDM modulation; antennas; channel capacity; indoor radio; time-varying channels; MIMO-OFDM channel; antenna configuration; channel capacity dynamic range analysis; fixed signal-to-noise ratio; fixed transmitted power; multiple-input multiple-output system; orthogonal frequency division multiplexing system; populated time-varying indoor environment; Channel capacity; Computer networks; Computer vision; Dynamic range; Indoor environments; MIMO; OFDM; Signal to noise ratio; Time varying systems; Transmitters; MIMO-OFDM; channel capacity; indoor; pedestrian; temporal variation;
Conference_Titel :
Telecommunication Networks and Applications Conference, 2007. ATNAC 2007. Australasian
Conference_Location :
Christchurch
Print_ISBN :
978-1-4244-1557-1
Electronic_ISBN :
978-1-4244-1558-8
DOI :
10.1109/ATNAC.2007.4665252
