Near Capacity Irregular Turbo Code
Abiodun Sholiyi, Jafar A. Alzubi, Omar A. Alzubi, Omar Almomani, Tim, O'Farrell

TL;DR
This paper presents a new irregular turbo code that approaches channel capacity, demonstrating improved performance over regular turbo codes in Gaussian channels through extensive simulation.
Contribution
The study introduces a near-capacity irregular turbo code with a novel design and evaluates its performance across various modulation schemes and frame sizes.
Findings
Achieves 1.29 dB coding gain over regular Turbo Code at BER of 10^-5
Utilizes a single recursive convolution encoder with short frame size
Effective in Gaussian noisy channels for potential commercial applications
Abstract
The purpose of this study is to construct a near capacity Irregular Turbo Code and to evaluate its performance over Gaussian channel. The methodology used to evaluate and measure the performance of the new design is by simulating the system by developing a software platform using Matlab. The simulation carried out by implementing the system over different modulation schemes, different frame sizes, and different code rates in order to achieve a fair comparison between irregular turbo code and regular Turbo Code. The simulation results showed that the Irregular Turbo Code with 64QAM modulation is capable of achieving a coding gain of 1.29 dB over its corresponding Turbo Code for a low Bit Error Rate 10 to 5, when used in a Gaussian noisy channel. Also, the Irregular Turbo Code designed in this paper, utilizes a single recursive Convolution encoder with short frame size of 5012 bits. The…
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