Figure 2From: Performance evaluation of a MIMO channel model for simplified OTA test systemsFunctional configuration of ‘multipath channel generation’ shown in Figure1. Gray circle, multipath generation function, namely Rayleigh fader for FE-1 and Doppler shifter for FE-2. (a) Path-controlled type (FE-1). (b) Antenna branch-controlled type (FE-2).Back to article page