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Esa Alghonaim

Assistant Professor

Faculty

علوم الحاسب والمعلومات
Building 31, 2nd floor, Office 2208
publication
Conference Paper
2007

IMPROVING BER PERFORMANCE OF LDPC CODES BASED ON INTERMEDIATE DECODING RESULTS

Alghonaim, Esa . 2007

LDPC codes BER performance Belief Propagation iterative decoding Error correction coding

The paper presents a novel approach to reduce the bit error rate (BER) in iterative belief propagation (BP) decoding of low density parity check (LDPC) codes. The behavior of the BP algorithm is first investigated as a function of number of decoder iterations, and it is shown that typical uncorrected error patterns can be classified into 3 categories: oscillating, nearly-constant, or random-like, with a predominance of oscillating patterns at high Signal-to-Noise (SNR) values.
A proposed decoder modification is then introduced based on tracking the number of failed parity check equations in the intermediate decoding iterations, rather than relying on the final decoder output (after reaching the maximum number of iterations). Simulation results with a rate ½ (1024,512) progressive edge-growth (PEG) LDPC code show that the proposed modification can decrease the BER by as much as 10-to-40%, particularly for high SNR values.

Conference Location
Dubai. UAE
Conference Name
EEE International Conference on Signal Processing and Communications (ICSPC 2007)
Sponsoring Organization
IEEE
more of publication
publications

The paper presents a novel approach to reduce the bit error rate (BER) in iterative belief propagation (BP) decoding of low density parity check (LDPC) codes.

by Esa Alghonaim, Mohamed Adnan Landolsi, Aiman El-Maleh
2007
publications

​This paper presents a novel approach for the design and implementation of a simulation platform for evaluating LDPC codes performance. The existing LDPC code simulation tools consume very long…

by Esa Alghonaim, Aiman El-Maleh, Adnan Al-Andalusi
2007
publications

The paper presents a novel approach to increase the performance and/or throughput of iterative belief propagation (BP) decoding of low density parity check (LDPC) codes. The proposed approach is…

by Esa Alghonaim, Aiman El-Maleh, Adnan Al-Andalusi
2008