This book covers multi-carrier communication and discusses its advantages and limitations with solutions for these limitations. It addresses the two primary drawbacks of OFDM communication systems: the high sensitivity to carrier frequency offsets and phase noise, and the high peak-to-average power ratio (PAPR) of the transmitted signals. Presenting a new interleaving scheme for multicarrier communication, it discusses the application of continuous phase modulation to multi-carrier communication systems such as OFDM and SC-FDMA systems. It also discusses image transmission with Discrete Cosine Transform (DCT)-based SC-FDMA systems using continuous phase modulation.