Filtering and modulating a first rate data signal into a Quadrature Amplitude Modulated (QAM) Code Division Multiple Access (CDMA) and a second rate data signal into a Time Division Multiple Access (TDMA) modulated signal and selecting between the transmission of the CDMA and TDMA modulated signals. A method for nonlinearly and linearly amplifying TDMA and CDMA signals. A diversity receiver and demodulator method for receiving and demodulating transmitted modulated signals. Processing, transmit baseband filtering and modulating signals for providing cross-correlated in-phase and quadrature-phase Gaussian filtered Gaussian Minimum Shift Keying (GMSK) and other cross-correlated modulated signals and spread spectrum Quadrature Phase Shift Keying (QPSK) modulated signals. Transmit processing and filtering for providing time division multiplexed (TDM) Gaussian filtered baseband signal and Orthogonal Frequency Division Multiplexed (OFDM) in-phase and quadrature-phase baseband modulated signal to a cellular network and to separate wireless network.