Multiple polarization communications
Robert B. Dybdal, S.J. Curry, Flavio Lorenzelli, D.J. Hinshilwood · 2012
If two independent signals are communicated using orthogonal polarizations, the communication throughput is doubled compared to a single polarization. Polarization reuse superimposes two independent signals in the same bandwidth and requires design attention to obtain adequate isolation between the signals to avoid cochannel interference. Polarization reuse is limited to doubling the communication throughput because any polarization has only one orthogonal polarization. A new technique uses multiple non-orthogonal polarizations and signal processing techniques to separate and combine multiple signal components and can more than double the communication throughput.