Experimental Evaluation of SEFDM Trellis Based Demodulator

Abstract

Many modern telecommunication systems use OFDM signals, because of their high performance in fading channels. Meanwhile, spectrum shortage is one of the most urgent problems. SEFDM signals have OFDM benefits while use less bandwidth at cost of performance degradation or extra computational costs. Computer models help to evaluate SEFDM processing algorithms performance and develop them further. However, experimental verification is essential in order to confirm signals stohastic characteristics in real systems. In this paper we describe experiment for proposed trellis based SEFDM demodulator evaluation. Demodulation algorithm implemented in software provides real-time signal generation and detection process.