An error probability formula for noncoherent orthogonal binary FSK with dual diversity on correlated Rician channels

We derive a novel error probability formula for noncoherent detection of orthogonal binary frequency-shift keying with dual diversity and equal gain combining in the presence of slow, correlated, Rician time-selective fading. Numerical results indicate that: (1) fading correlation may produce a substantial performance loss and (2) the error performance of the noncoherent detector improves uniformly as the intensity of the line-of-sight signal component increases.