Academic Journals Database
Disseminating quality controlled scientific knowledge

ROBUST BASEDBAND REED SOLOMON DETECTION OVER POWER LINE CHANNEL

ADD TO MY LIST
 
Author(s): PU CHUAN HSIAN

Journal: Journal of Engineering Science and Technology
ISSN 1823-4690

Volume: 6;
Issue: 1;
Start page: 69;
Date: 2011;
VIEW PDF   PDF DOWNLOAD PDF   Download PDF Original page

Keywords: Reed Solomon (RS) Codes | Symmetric α-stable (SS) distribution | Median filtering | Power Line Communication (PLC) | Channel coding | Bit Error Rate (BER)

ABSTRACT
The research studied the transmission of based-band data for conventional Reed Solomon Codes (RS) over hostile impulsive channel such as power-line channels (PLC). The research works identified the breakdown of well-designed conventional RS codes over PLC impulsive channel and proposed a mitigation technique to improve the performance of such RS codes over impulsive channel. Traditionally, Reed Solomon Codes is designed effectively to combat and correct burst errors arising from Addictive White Gaussian Noise (AWGN). However, it works ineffectively against non-Gaussian noise interference, particularly on PLC channel. Thus such decoding method failed severely in impulsive noise interference due to the deficiency in its design on part of the decoder which is optimized for AWGN channel. Traditionally, median value can statistically eliminate the influence of outliers. Hence, the excellent trait of median value was exploited in our study to eliminate impulses arising from PLC. As a consequence, median filtering framework is incorporated to enhance the detection of signals from PLC prior to hard decision RS decoding. The simulation results showed that performance of RS codes is substantially improved after median filtering. The incorporation of median filtering framework into RS codes has significantly strengthened the operation of RS codes over hostile PLC channel.
Why do you need a reservation system?      Save time & money - Smart Internet Solutions