TELKOMNIKA Telecommunication, Computing, Electronics and Control
High performance binary LDPC-coded OFDM systems over indoor PLC channels

TELKOMNIKA Telecommunication, Computing, Electronics and Control
High performance binary LDPC-coded OFDM systems over indoor PLC channels

Bit error rate
Impulse noise
LDPC codes
OFDM
PLC channel

Power line communication (PLC) technology is actually among the most
renowned technologies for home environments due to their low-cost
installation opportunities. In this study, the bit error rate (BER) performances

of binary low-density parity check (LDPC) coded orthogonal frequency-
division multiplexing (OFDM) systems have been considered over indoor PLC

channels. Performances comparison of diverse soft and hard decision LDPC
decoder schemes such as Min-Sum (MS), weighted bit flipping (WBF),
gradient descent bit-flip (GDBF), noisy gradient descent bit-flip (NGDBF) and
its few variants including the single-bit NGDBF (S-NGDBF), multi-bit
NGDBF (M-NGDBF) and smoothed-multi-bit NGDBF (SM-NGDBF)
decoders were examined in the modeled network. To evaluate the BER
performance analyses three different PLC channel scenarios were generated
by using new and more realistic PLC channel model proposal were also
employed. All of the simulations performed in Canete’s PLC channel model
showed that remarkable performance improvement can be achieved by using
short-length LDPC codes. Especially, the improvements are striking when the
MS or SM-NGDBF decoding algorithms are employed on the receiver side.

Nejwa El Maammar, Seddik Bri, Jaouad Foshi, Mohammed Amine Ihedrane , El Fadl Adiba

http://journal.uad.ac.id/index.php/TELKOMNIKA

Apr 10, 2021

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