Title :
Optimum Receivers for Non-Linear Distortion Compensation of OFDM Signals in Fiber Supported Wireless Applications
Author :
Oliveira, João M B ; Rodrigues, Miguel R D ; Salgado, Henrique M.
Author_Institution :
FEUP, Porto
Abstract :
In this paper, we study the performance of the optimum receiver for nonlinear distorted OFDM signals in RoF applications, which is composed by a demodulator followed by an ML detector. The demodulator observes the various intermodulation products to compute a set of sufficient statistics, while the detector observes the sufficient statistics to compute an estimate of the original data. Particularly, we concentrate on the uplink of intensity modulation/direct detection RoF system where the OFDM signal suffers from linear distortion (fading), nonlinear distortion and noise. We demonstrate that the optimum receiver outperforms the conventional OFDM receiver by several orders of magnitude.
Keywords :
OFDM modulation; demodulators; intensity modulation; maximum likelihood detection; optical receivers; radio-over-fibre; OFDM receiver; OFDM signals; demodulator; intensity modulation; maximum likelihood detector; nonlinear distortion compensation; optimum receivers; radio over fiber applications; AWGN; Additive white noise; Demodulation; Detectors; Fading; Nonlinear distortion; OFDM modulation; Optical transmitters; Radio transmitters; Telecommunication computing;
Conference_Titel :
Microwave Photonics, 2007 IEEE International Topical Meeting on
Conference_Location :
Victoria, BC
Print_ISBN :
978-1-4244-1167-2
Electronic_ISBN :
978-1-4244-1168-9
DOI :
10.1109/MWP.2007.4378151
