Forward error correction of FSK alphabets for noncoherent transmissions over AWGN channel Academic Article uri icon

abstract

  • We show that several coding schemes, in particular turbo encoding, dramatically improve the performance of a noncoherently detected frequency shift-keying modulation with correlated signals. The proposed a posteriori probability (APP) decoder based on bit-by-bit decisions proves to be highly flexible and more efficient than a classical block decisions decoding scheme. Moreover, the choice of the FSK modulation tone spacing is important. Simulation results show that the turbo-coded FSK exhibits the lowest error probability when compared to TCM, convolutional and lattice encoding schemes.

author list (cited authors)

  • Durand, C., Boutros, J., & Bejjani, E.

citation count

  • 5

publication date

  • October 2000