Title :
A comparison of measured 8 × 8 MIMO systems with a popular stochastic channel model at 5.2 GHz
Author :
Ozcelik, Hüseyin ; Herdin, M. ; Hofstetter, Helmut ; Bonek, Emst
Author_Institution :
Inst. fur Nachrichtentech. und Hochfrequenztech., Tech. Univ. Wien, Austria
fDate :
23 Feb.-1 March 2003
Abstract :
We compared the average capacities of measured 8 × 8 MIMO systems with the capacities calculated from a popular stochastic MIMO model. This model separated the influence of fading from the correlation at transmit (TX) and receive (RX) arrays. By using directional RX antennas and a virtual 20 × 10 TX array with omni antennas, the MIMO channel at different RX positions in an outdoor office scenario at 5.2 GHz was measured. For low correlation at the receiver and transmitter the model fits very well. But for high correlation at both receive and transmit side, considerable discrepancy arose. In these cases, we found that the entries in the fading matrices are not independent identically distributed with mean power of unity, as assumed in the model.
Keywords :
MIMO systems; antenna arrays; correlation methods; fading channels; indoor radio; receiving antennas; transmitting antennas; 5.2 GHz; average capacity; correlation; directional RX antenna; fading influence; fading matrix; indoor office scenario; measured 8 × 8 MIMO system; omni antenna; receive array; stochastic MIMO channel model; transmit array; virtual TX array; Antenna measurements; Directive antennas; Fading; Frequency measurement; MIMO; Matrix decomposition; Position measurement; Power system modeling; Stochastic processes; Stochastic systems;
Conference_Titel :
Telecommunications, 2003. ICT 2003. 10th International Conference on
Print_ISBN :
0-7803-7661-7
DOI :
10.1109/ICTEL.2003.1191663
