Wireless mobile communication systems without pilot signals

In this article, I propose an innovative method of multiple access, known as Frequency Bank Signal (FBS). FBS combines the phase shift compensation used in the PAL-TV system, the OFDMA principle and the spread spectrum concept with Walsh functions. The main advantage of using an FBS is that the error probability is almost non-sensitive to the Doppler Effect, separate signals delay and to the influence of fading. In addition, the FBS signal is free of special pilot, synchronization or equalization signals.