LAUSR

In this letter, we derive the basic conditions that should be met for the weighted signal suitable for the communication system and extend the weighted fractional Fourier transform-based classical hybrid carrier system to the generalized hybrid carrier system. Furthermore, a generalized hybrid carrier signal design is presented with equal component power. Compared with the classical hybrid carrier signal, the power distribution of the proposed system in the time–frequency plane is more uniform, which makes it more suitable for doubly selective channels. The simulation results show that over doubly selective channels, the generalized hybrid carrier signal with equal component power achieves better bit error rate performance than the classical hybrid carrier signal does.