Title :
Field experiments of LTE-Advanced-based 8×8 multiuser MIMO system with vector perturbation
Author :
Sonobe, S. ; Tsukamoto, Sanroku ; Maeda, T. ; Yano, Ken´ichi ; Ban, H. ; Uno, Masatoshi ; Kobayashi, Kaoru
Author_Institution :
ATR Wave Eng. Labs., Kyoto, Japan
Abstract :
We have developed an LTE-Advanced-based 8 × 8 multiuser MIMO experimental system with vector perturbation to overcome performance degradation of the MIMO technique under spatially correlated channel conditions, such as a line-of-sight (LoS) environment. This paper introduces our experimental system and shows results of outdoor/indoor experiments envisioning small-cell environments. Through experimental evaluation, it is confirmed that the throughput of the downlink transmission with vector perturbation reaches almost double that with MMSE spatial filtering.
Keywords :
Long Term Evolution; MIMO communication; indoor radio; least mean squares methods; perturbation techniques; spatial filters; LTE-Advanced-Based 8x8 multiuser MIMO system; LoS environment; MIMO technique; MMSE spatial filtering; downlink transmission; field experiments; line-of-sight environment; outdoor-indoor experiments; performance degradation; spatially correlated channel conditions; vector perturbation; Antenna measurements; Antennas; Indexes; MIMO; Receivers; Throughput; Vectors;
Conference_Titel :
Modeling & Optimization in Mobile, Ad Hoc & Wireless Networks (WiOpt), 2013 11th International Symposium on
Conference_Location :
Tsukuba Science City
Print_ISBN :
978-1-61284-824-2
