Diversity Combining for ACO-SCFDM in Intensity-Modulated and Direct-Detection Systems

Abstract

This paper proposes a receiver based on diversity combining to improve the performance of asymmetrically clipped optical single-carrier frequency-division multiplexing (ACO-SCFDM) for intensity-modulated and direct-detection (IM/DD) optical transmission systems. Furthermore, a simplified encoding with low computational complexity of O(N) is proposed at the receiver. The simulation results indicate that the proposed receiver for ACO-SCFDM outperforms the conventional receiver by 1.5dB at the 7% forward error correction (FEC) limit.