학술논문
Efficient ICI reduction technique for OFDM systems distorted by TWTA and CFO
Document Type
Conference
Source
2012 International Conference on Communications and Information Technology (ICCIT) Communications and Information Technology (ICCIT), 2012 International Conference on. :347-351 Jun, 2012
Subject
Language
Abstract
Multi-carrier systems are significantly affected by inter-carrier interference (ICI) produced by both travelling wave tube amplifiers (TWTAs) utilized in satellite systems and carrier frequency offsets (CFOs). To reduce the ICI, an improved version of the partial transmit sequences (PTS) scheme is proposed based the distortion-to-signal power ratio (DSR) measurements. Monte Carlo simulation results demonstrated that the proposed system outperforms the conventional PTS in terms of bit error rate (BER), effective signal-to-noise ratio (ESNR) and complementary cumulative distribution function (CCDF).