A Holistic Approach to Wireless Design Through Physics Based Simulations
Multi-stream tests
Singular-values of a mimo channel matrix show distinct non-interfering parallel channels that are capable to carry separate data streams. With only a single large singular value as we have in this example, multiplexing multiple data streams is impracticable as the environment does not have sufficient scattering.
Angular Domain Channel
Plotting the channel matrix in the angular domain, we observe that most of the signal power at the receiver comes from one angle bin which confirms the fact that the environment has limited scattering at the receiver and thus cannot support many non-interfering data streams. On the contrary, we observe that we have rich-scattering at the transmitter which enables diversity. This comes from distinct angles at the transmitter that fade independently reducing the overall outage probability.