摘要：Multi-Carrier modulation system has received much attention in modern communication technology and is finding attractive applications. However, cyclic extension of each transformed block to robust the transmission performance restrict the achievable spectral efficiency. This work presents and assesses a new physical layer of a multi-carrier wireless communication system based on multi symbol encapsulated approach. The study introduced and discussed the discrete cosine transform DCT-based MC modulation with single zero padded extension for multiple consecutive transformed blocks. Simulation results show that our scheme simultaneously decreases error rate and reduces the PAPR by 3 dB in presence of nonlinear power amplifier model. Differences with respect to the conventional system also are pointed out. Moreover, the simulation over slow fading channel depicted that encoded signals in MC scheme based on MSE-DCT performs better if a blind estimation based on matched filter approach is considered. The simulation study proves that such a prefilter would be appropriate to compensate the distortion induced by the channel.
