Title :
A novel method for throughput enhancement of adaptive OFDM in attenuated power line channels
Author :
Heggo, Mohammad ; El Ramly, Salwa H. ; El Badawy, H.M.
Author_Institution :
Dept. of Electron. & Commun., Univ. of Ain Shams, Cairo, Egypt
Abstract :
Communications over power line channels offer inexpensive and convenient solution for signal transmission; however power line channel suffers from multipath fading and frequency selectivity along with manmade burst impulsive noise. Data spread OFDM has been evolved as an efficient adaptive modulation that controls the power of each subcarrier according to its channel transfer function. This paper aims to present a novel method using data spread OFDM to achieve higher carrier to noise ratio (CNR) and lower bit error rate (BER) in highly attenuated power line channel conditions. The simulations prove that the proposed system outperforms the conventional one under harsh power line conditions.
Keywords :
OFDM modulation; error statistics; impulse noise; telecommunication channels; CNR; adaptive OFDM; adaptive modulation; attenuated power line channel; bit error rate; channel transfer function; data spread OFDM; frequency selectivity; manmade burst impulsive noise; multipath fading; signal transmission; throughput enhancement; Artificial neural networks; Phase shift keying; Quadrature amplitude modulation; Signal to noise ratio; bit loading; data spread OFDM; impulsive noise; power line communication; throughput;
Conference_Titel :
Computer Engineering Conference (ICENCO), 2010 International
Conference_Location :
Giza
Print_ISBN :
978-1-61284-184-7
DOI :
10.1109/ICENCO.2010.5720424
