Evaluation of cover and reflector in receiver antennas for SM-MIMO wireless communications

Spatial multiplexing multiple-input multiple-output (sm-mimo) is effective in increasing communication throughput. however,performance degradation occurs in poor multipath and line-of-sight (los) channels due to the high spatial correlation. this paper presents the evaluation of cover and reflector in receiver antennas to overcome the performance degradation in mimo los channels. we measured the characteristics of packet error rate (per),signal-to-noise ratio (snr),spatial correlation coefficient,and received power ratio in farm,groove,passage,and corner environments. the farm environment degraded communication performance due to the high spatial correlation coefficient. following the measurement results,we fabricated cover and reflector in receiver antennas to decrease the high spatial correlation and confirmed the improvement of communication performance. © 2013 shingo yoshizawa and yoshikazu miyanaga.