Hello,
As Chris has indicated, ABAB/CDCD deployments, as discussed in http://community.cambiumnetworks.com/t5/ePMP-Synchronization/Mitigating-self-interference-in-an-ePMP-ABAB-frequency-reuse/m-p/38203#U38203 are recommended. The use of antennas with F/B greater than 30dB is critical.
In the case of ePMP, we also recommend minimum of 5MHz guardband between adjacent sectors (5MHz guardband between channel A and B, for example).
Regards