Optical space division multiple access (SDMA) can be useful which use an angle diversity transmitter.
To solve this issue, angle diversity based optical photo detector is proposed to mitigate the LOS interference.
The TFLA is a rapidly deployable angle diversity
three meter troposcatter antenna that is a single antenna designed to support quad-diversity operation that enables the link to be setup in 30 minutes or less, a significant reduction from the traditional two antenna system.
9 dB at the 1 percent probability level were achieved using selection diversity with spatial, polarization and angle diversity
Frequency diversity, space diversity and angle diversity
are also available.