Performance of phase-locked loop receiver in digital FM systems

We investigate a noncoherent detection technique based on a phase-locked loop (PLL) for wireless communication applications, with an emphasis on the Digital Enhanced Cordless Telephone (DECT) system. The performance of the PLL receiver in additive white Gaussian noise (AWGN) and interference-limited environments is simulated and compared to the performance of the limiter-discriminator detector (LD) and the differential detector (DD). The results indicate that a well-designed PLL receiver based on the selection of PLL parameters and post-detection filtering is a better candidate for the DECT than either LD or DD receiver.